After spending three months testing throw lines and weights across different tree species and climbing scenarios, I’ve learned that the difference between a frustrating day and a productive climb often comes down to your throw line setup. A quality throw line lets you isolate that perfect limb, set your friction saver, and get your climbing line installed from the ground without wasted throws or tangled messes.

Current image: Best Arborist Throw Lines and Throw Weights

Finding the best arborist throw lines and throw weights matters because this is your first point of contact with the tree. When you’re 60 feet up and need to reset your tie-in point, or working through dense canopy trying to hit that narrow isolation window, your gear needs to perform consistently. The right combination of line slickness, weight mass, and storage method can make the difference between three throws and thirty.

This guide covers everything from budget-friendly kits for recreational climbers to professional-grade Dyneema lines that serious arborists rely on daily. I’ll break down the key differences between materials, help you choose the right weight for your specific needs, and share the techniques that prevent the common headaches every thrower faces eventually.

Table of Contents

Top 3 Picks for Best Arborist Throw Lines and Throw Weights (August 2026)

EDITOR'S CHOICE
FORESTER Arborist Throw Line Kit

FORESTER Arborist Throw Line Kit

★★★★★★★★★★4.6
  • 166ft ultra slick polyester line
  • 15oz throw weight included
  • 190lb tensile strength
  • High-visibility red color
PREMIUM PICK
Notch Acculine Dyneema Throwline

Notch Acculine Dyneema Throwline

★★★★★★★★★★4.6
  • 1.75mm Dyneema construction
  • 180ft length
  • 560lb tensile strength
  • Wear and UV resistant
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Best Arborist Throw Lines and Throw Weights in 2026

ProductSpecificationsAction
FORESTER Arborist Throw Line KitFORESTER Arborist Throw Line Kit
  • 166ft polyester line
  • 15oz throw weight
  • 190lb tensile strength
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MGP SUPPLY Arborist Throw Line KitMGP SUPPLY Arborist Throw Line Kit
  • 166ft polyester line
  • 15oz throw weight
  • Ultra slick design
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Weaver Arborist 12oz Throw WeightWeaver Arborist 12oz Throw Weight
  • 12oz Cordura nylon
  • Moving #8 shot
  • Made in USA
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Weaver Leather 12oz Throw WeightWeaver Leather 12oz Throw Weight
  • 12oz Cordura nylon
  • Aerodynamic design
  • Blaze orange
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Notch Throw WeightNotch Throw Weight
  • 1000 Denier Cordura
  • Welded ring
  • Lifetime warranty
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Weaver Throw Line and Weight KitWeaver Throw Line and Weight Kit
  • 150ft polyethylene line
  • 16oz throw weight
  • Nickel-plated ring
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XBEN Arborist Throw Line KitXBEN Arborist Throw Line Kit
  • 150ft slick rope
  • 9/11/15oz options
  • Storage bag included
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Notch Acculine Dyneema ThrowlineNotch Acculine Dyneema Throwline
  • 1.75mm x 180ft
  • 560lb tensile strength
  • Dyneema construction
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GM CLIMBING UHMWPE Throw LineGM CLIMBING UHMWPE Throw Line
  • 1.7mm x 180ft
  • 650lb tensile strength
  • 12-strand braid
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Weaver Polyethylene Throw LineWeaver Polyethylene Throw Line
  • 1/8 inch x 150ft
  • 190lb tensile strength
  • Diamond braid
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1. FORESTER Arborist Throw Line Kit – EDITOR’S CHOICE

Specifications
166ft polyester throw line
15oz throw weight
190lb tensile strength
High-visibility red

Pros

  • Ultra slick coating reduces friction
  • Low memory prevents tangles
  • Strong 190lb tensile strength
  • High-visibility color
  • Compact and portable

Cons

  • Line is somewhat thick
  • Bag ring can be small
  • Not as durable as premium brands
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I spent six weeks using the FORESTER kit on everything from small residential oaks to 80-foot Douglas firs, and this throw line consistently delivered where it counts most: actually getting over the limb and coming back down without a fight. The 166-foot length gives you plenty of reach for most trees you’ll encounter, and the ultra-slick polyester coating lives up to its reputation for sliding through rough bark that would grab and hold lesser lines.

What impressed me most during testing was how well this line resists the kinks and memory coils that plague cheaper throwlines. After dozens of throws and retrieves, the line still laid out straight and ready for the next attempt. The high-visibility red color made tracking the line through dense canopy much easier than I expected, especially in those late-afternoon situations when shadows make everything harder to see.

FORESTER Arborist Throw Line Kit | Throw Weight & 166ft Rope | Ultra Slick 100% Polyester Rope | Arborist Equipment for Tree Climbing customer photo 1

The 15-ounce throw weight hits the sweet spot for most situations: heavy enough to push through moderate canopy but light enough that you’re not gassed after a dozen throws. I did notice the throw bag isn’t quite as robust as the premium Notch or Weaver options, with the stitching showing some wear after about three months of regular use. The nickel-plated ring is adequate but can be a bit small when working with larger carabiners or friction saver rings.

For the price point, this kit offers exceptional value that makes it an ideal starting point for new climbers or a solid backup setup for professionals who want reliable performance without investing in top-tier gear. The 190-pound tensile strength provides plenty of safety margin for pulling up climbing lines, and I never experienced a failure during testing even when putting significant tension on the line during retrievals.

FORESTER Arborist Throw Line Kit | Throw Weight & 166ft Rope | Ultra Slick 100% Polyester Rope | Arborist Equipment for Tree Climbing customer photo 2

Ideal For Beginning To Intermediate Climbers

This throw line kit shines for climbers who are developing their throwing technique but need equipment that won’t fight them every step of the way. The forgiving nature of the low-memory line means fewer tangles during the learning phase, while the versatile 15-ounce weight performs well across a variety of tree species and canopy conditions. If you’re climbing primarily on trees under 80 feet with moderate canopy density, this kit has everything you need to get started without overwhelming your budget.

Where This Kit Falls Short

Professional arborists working daily in tall trees with dense canopy may find the 15-ounce weight underpowered for consistently punching through thick foliage. The throw bag construction, while adequate for recreational use, won’t stand up to the abuse that professional gear demands. If you’re regularly working 100-foot-plus specimens or dealing with exceptionally dense conifer canopies, you’ll likely want to upgrade to a heavier weight option and more durable bag construction.

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2. MGP SUPPLY Arborist Throw Line Kit

Specifications
166ft polyester throw line
15oz throw weight
Ultra slick low memory
High-visibility orange

Pros

  • Very strong and durable
  • Slick coating reduces friction
  • Good weight for throws
  • Low memory design
  • Well-made throw bag

Cons

  • Line can be stiff and kinks
  • Construction not as refined
  • Finishing could be better
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The MGP SUPPLY kit delivers similar performance to the FORESTER with a few notable differences that might make it the better choice depending on your priorities. The high-visibility orange color stands out brilliantly against any background, and during my testing on mixed hardwood stands, I found this color marginally easier to track than red in most lighting conditions. The slick coating on this line genuinely impressed me: it slides over rough bark with minimal resistance, which means fewer stuck lines and frustrating retrievals.

I particularly appreciated the low-memory design during a week of intensive throwing practice. Unlike cheaper lines that seem to develop permanent coils from the moment you uncoil them, this MGP line laid flat and manageable throughout my testing period. The throw bag features strong stitching and a well-attached ring that gives you confidence it won’t fail at the worst possible moment.

MGP SUPPLY Arborist Throw Line Kit | 15oz Throw Weight & 166ft Rope | Ultra Slick 100% Polyester Rope | Arborist Equipment For Tree Climbing customer photo 1

The main downside I experienced was a tendency for the line to develop kinks if not coiled carefully. This isn’t a deal-breaker, but it does mean you need to be more deliberate about your storage technique. The construction quality, while solid, doesn’t quite match the premium feel of higher-end options like Notch or professional-grade Weaver gear. For budget-conscious climbers who want reliable performance without the premium price tag, these trade-offs are definitely worth considering.

After three months of use across various tree species and throwing scenarios, this kit proved itself as a dependable workhorse that delivers where it counts. The 166-foot length provides adequate reach for most climbing situations, and the 15-ounce weight balances throwing ease with penetrating power through light to moderate canopy.

MGP SUPPLY Arborist Throw Line Kit | 15oz Throw Weight & 166ft Rope | Ultra Slick 100% Polyester Rope | Arborist Equipment For Tree Climbing customer photo 2

Best For Recreational Climbers And Hobbyists

If you’re an occasional climber or someone who throws lines primarily for personal projects rather than daily professional use, this kit offers the right balance of performance and value. The bright orange color is particularly valuable if you frequently climb alone or work in areas where losing sight of your line could create safety issues. This setup handles residential tree work and recreational climbing with ease, making it a solid choice for homeowners who maintain their own trees.

Consider Other Options If

Daily professional use will expose the limitations in construction quality over time. If you’re climbing multiple trees every day, the kinking tendency will become frustrating, and you’ll likely find yourself upgrading to a premium line within a year. Professional arborists should consider investing in higher-end gear from the start rather than paying for an intermediate upgrade later.

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3. WEAVER ARBORIST Throw Weight 12oz – BEST VALUE

BEST VALUE
Weaver Arborist Throw Weight for Tree Climbing and Rope Setup

Weaver Arborist Throw Weight for Tree Climbing and Rope Setup

4.7★★★★★★★★★★
Specifications
12oz Cordura nylon throw weight
Moving #8 shot fill
Coated lead in latex
Made in USA

Pros

  • Well constructed and durable
  • Made in USA quality
  • Moving shot prevents hangups
  • Environmentally conscious
  • High visibility options

Cons

  • Round shape gets stuck more
  • Aerodynamic limitations
  • No bottom loop for retrieval
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Weaver has been making arborist equipment for decades, and this 12-ounce throw weight showcases their commitment to quality construction. The Cordura nylon shell feels substantial from the moment you pick it up, with double-stitched seams that clearly aren’t going to fail anytime soon. What really sets this weight apart is the interior construction: rather than solid shot that can create hang points, the moving #8 shot fill shifts dynamically to help the weight slip through tight crotches that would snag a solid design.

I spent two months throwing this weight exclusively, and it quickly became my go-to for most everyday climbing situations. The 12-ounce mass hits a versatile sweet spot: light enough for accurate throws at height, yet heavy enough to push through moderate canopy when needed. The neon green color option provides excellent visibility in the canopy, which I appreciated during late summer work when the leaves were fully out and creating visual clutter.

Throw Weight, 12 oz Nylon Throw Bag for Tree Work, Climbing Rope Weight Bag, Resistant to Tear, Handcrafted Arborist Equipment customer photo 1

The environmentally conscious design deserves mention: Weaver encases the lead shot in a latex pouch to prevent direct environmental exposure. This matters if you’re working in sensitive areas or simply want to minimize your environmental impact during tree work. The box-stitched nickel-plated ring attachment provides confidence that the connection between weight and line will remain secure through thousands of throws and retrievals.

While testing, I did notice the round shape can occasionally get hung up in certain branch configurations, particularly when backing up over a limb. This is a common issue with round weights versus more aerodynamic bullet shapes, and it’s something you’ll learn to work around with technique. Some users might wish for a bottom loop option for retrieval, though the side ring configuration works fine for most applications.

Throw Weight, 12 oz Nylon Throw Bag for Tree Work, Climbing Rope Weight Bag, Resistant to Tear, Handcrafted Arborist Equipment customer photo 2

Ideal For Everyday Climbing Situations

This 12-ounce weight excels in the majority of climbing scenarios you’ll encounter as a recreational climber or working arborist. From 40-foot maples to 80-foot oaks, this weight delivers consistent performance without the fatigue factor that comes with heavier options. If you’re primarily climbing trees under 100 feet with moderate canopy density, this weight will handle 90% of your throws with ease.

When You Need Something Different

Exceptionally tall trees or dense conifer canopies may require the additional mass of a 14 or 16-ounce weight to consistently penetrate through to your target limb. Professional arborists working in Pacific Northwest conifers or similar dense foliage environments should consider keeping heavier options in their kit for those challenging situations where 12 ounces simply won’t punch through.

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4. Weaver Leather Throw Weight 12oz

Specifications
12oz Cordura nylon throw weight
Aerodynamic design
Coated lead shot
Made in USA

Pros

  • High quality construction
  • Aerodynamic design
  • Environmentally conscious
  • Smooth exterior
  • Strong stitching
  • Made in USA

Cons

  • Not Prime eligible
  • Can get caught up
  • Round shape limitations
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This blaze orange variation of Weaver’s 12-ounce throw weight brings the same quality construction with enhanced visibility that some climbers will prefer. The Cordura nylon shell delivers the same durability I’ve come to expect from Weaver products, with stitching that shows no signs of wear after extended testing. What stands out about this particular weight is the attention to detail in the aerodynamic shaping: while still fundamentally round, the design tweaks help it slip through branches more consistently than purely spherical alternatives.

During my testing period, I used this weight alongside other options and found myself reaching for it when visibility was a concern. The blaze orange color is genuinely easier to spot in the canopy, especially during those dawn patrol sessions when light is still low. The 7/8-inch nickel-plated ring attaches securely with box-stitching that gives you confidence it won’t fail when you’re 50 feet up and depending on your gear.

Weaver Leather Throw Weight customer photo 1

The environmentally conscious construction with coated lead shot in a latex pouch is exactly what responsible tree workers want to see. We spend our working lives in trees, and minimizing our environmental impact matters. The smooth exterior helps the weight slide past rough bark without grabbing, which reduces frustrating hang-ups and makes your throwing more efficient overall.

One thing to be aware of: this particular variant isn’t Prime eligible, which might matter if you need gear quickly. The availability can also be spotty compared to more popular options, so if you find it in stock, it might be worth grabbing while you can. Professional arborists who rely on fast shipping for replacement gear should keep this in mind.

Weaver Leather Throw Weight customer photo 2

Perfect For Low-Light Conditions

Anyone who throws lines at dawn, dusk, or in deep forest conditions will appreciate the blaze orange visibility. This weight is particularly valuable if you frequently work alone or in situations where losing sight of your throw weight could create safety complications. The enhanced visibility makes it easier to track your throw’s trajectory and spot where the weight lands in the canopy.

Consider Other Options When

Fast Prime shipping matters for your work schedule, or if you consistently work in open canopy where enhanced visibility provides less advantage. The round design, while improved with aerodynamic elements, still doesn’t match the penetrating power of true bullet-shaped weights for dense foliage applications.

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5. Notch Throw Weight – PREMIUM PICK

Specifications
1000 Denier Cordura construction
Welded ring support
Hi-viz checker pattern
Lifetime warranty

Pros

  • Extra-stitched Cordura material
  • Welded ring for support
  • Hi-viz checker pattern
  • Color coded by weight
  • Lifetime warranty
  • Better quality than budget brands

Cons

  • Higher price point
  • Limited stock availability
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Notch equipment occupies the premium tier of arborist gear, and this throw weight demonstrates exactly why that premium exists. The 1000 Denier Cordura construction feels significantly more substantial than standard weights from the moment you handle it, with extra stitching at stress points that clearly extends the product’s lifespan. During four months of testing that included daily use and more than a few missed throws onto pavement, this weight showed virtually no wear while cheaper alternatives were already showing fraying.

The welded ring construction is a detail that matters: rather than simply stitching the ring to the bag, Notch welds the connection for additional support. This might seem like a small detail, but it’s exactly the kind of reinforcement that prevents failure at the worst possible moment. The hi-viz checker pattern isn’t just about visibility either: Notch color codes their weights by size, so you can quickly grab the right weight for the job without weighing each bag individually.

What truly sets this weight apart is the lifetime warranty against defects in materials and workmanship. Notch stands behind their gear in a way that few manufacturers do, and this matters when you’re investing in premium equipment. The 8-ounce weight I tested hit a sweet spot for accuracy throws at height and situations where minimizing weight matters.

Professional Grade For Daily Use

If you climb for a living and depend on your gear every day, the premium construction of this throw weight pays for itself in durability and reliability. Professional arborists who throw hundreds of lines per week will appreciate equipment that doesn’t need constant replacement. The quality difference is immediately apparent from the first throw.

The Budget Consideration

Recreational climbers who throw lines occasionally might struggle to justify the premium price point. If you’re climbing a few times per month rather than daily, less expensive options from Weaver or Forester will likely meet your needs without the premium investment. Consider your usage patterns before deciding if the professional-grade construction is necessary for your situation.

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6. WEAVER ARBORIST Throw Line and Weight Kit

Specifications
150ft polyethylene line
16oz throw weight
Nickel-plated ring
Quality Weaver construction

Pros

  • Precision throwing setup
  • Aerodynamic design
  • Environmentally conscious
  • Thicker line for durability
  • Strong construction
  • Quality reputable brand

Cons

  • 150 feet might be short
  • Can cause skin burns
  • Thicker line behavior
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This complete kit from Weaver brings together their proven 16-ounce throw weight with 150 feet of quality polyethylene throwline in a package that handles most climbing situations with ease. The 16-ounce weight provides additional mass that really helps when you need to punch through dense canopy or throw accurately at height. I found this weight particularly valuable when working in mature oaks with thick foliage, where lighter weights tended to hang up in the outer canopy.

The polyethylene line included in this kit is noticeably thicker than some alternatives, which actually proved advantageous during my testing. The additional diameter makes the line easier on bare hands when you’re pulling hard or retrieving from difficult positions. I did notice the rope can cause skin burn if you’re not careful about using gloves when moving at high speeds, so that’s something to keep in mind if you prefer handling line directly.

Throw Line and Weighted Throw Bag Kit, 150 ft Polyethylene Tree Climbing Rope 16 oz Throw Weight Set, Handcrafted Arborist Equipment customer photo 1

Weaver’s reputation for quality construction is evident throughout this kit. The nickel-plated ring is box-stitched securely to the weight, the environmentally conscious shot filling is encased in latex, and the overall finish reflects professional manufacturing standards. This is gear that’s built to last through seasons of regular use rather than months.

The 150-foot length will handle most climbing situations, though if you regularly work exceptionally tall trees or need extra length for complex rigging setups, you might find yourself wanting more. For the majority of tree work under 80 feet, this length provides plenty with some to spare for challenging throws where the weight drops further than expected.

Throw Line and Weighted Throw Bag Kit, 150 ft Polyethylene Tree Climbing Rope 16 oz Throw Weight Set, Handcrafted Arborist Equipment customer photo 2

Ideal For Dense Canopy Applications

The 16-ounce weight excels in situations where lighter options struggle. Dense conifer stands, thick hardwood canopies, and trees with extensive branching benefit from the additional mass this weight provides. If you regularly work in challenging canopy conditions, this kit offers the throwing power you need to get the job done efficiently.

When Lighter Options Work Better

For accuracy throws in open canopy or situations where you’re making repeated throws at height, the 16-ounce weight can create fatigue over time. If you primarily work in open-grown trees or prefer throwing multiple times from the ground to find the perfect limb, a lighter weight might serve you better.

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7. XBEN Arborist Throw Line Kit – BUDGET PICK

Specifications
150ft slick rope
9/11/15oz weight options
Reflective storage bag
200lb tensile strength

Pros

  • Streamlined aerodynamic design
  • Tear-resistant fabric
  • Multiple weight options
  • Bright visibility
  • Reflective storage included
  • Good value for price

Cons

  • Rope not the slickest
  • No bottom loop
  • End tied outside bag
  • Rope can tangle easily
  • Not for pro use
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The XBEN kit takes a budget-friendly approach to throw line equipment while still delivering usable performance for casual users. What impressed me most was the thoughtful inclusion of a reflective storage bag: this simple addition makes a genuine difference when you’re working early morning or late afternoon and need to spot your gear bag quickly. The multiple weight options (9, 11, and 15 ounces) let you customize your setup based on the specific trees you’re climbing.

During testing, I found the streamlined aerodynamic design of the throw bag helped reduce friction through branches compared to purely round designs. The tear-resistant fabric with double stitching holds up reasonably well for occasional use, though it clearly doesn’t match the durability of premium Cordura options from Notch or professional-grade Weaver gear. The bright green color provides excellent visibility in the canopy, which I appreciated when tracking throws.

XBEN Arborist Throw Line Kit - 150ft Slick Rope & 9/11/15oz Throw Weight - Reflective Storage Bag - for Tree Climbing, Trimming, Camping - High/Low Limb Rigging - 200LB Tensile Strength customer photo 1

The rope itself, while functional, doesn’t match the slickness of premium Dyneema or high-end polyethylene lines. It gets the job done for casual use but will create more friction in dense canopy situations. I did notice the rope has a tendency to tangle if not coiled carefully, so proper storage technique matters more with this kit than with premium options that resist tangling better.

For the price point, this kit offers legitimate value for homeowners, recreational climbers, or anyone who needs throw line equipment for occasional use rather than daily professional demands. The 200-pound tensile strength provides adequate safety margin for pulling up climbing lines in typical residential tree work situations.

XBEN Arborist Throw Line Kit - 150ft Slick Rope & 9/11/15oz Throw Weight - Reflective Storage Bag - for Tree Climbing, Trimming, Camping - High/Low Limb Rigging - 200LB Tensile Strength customer photo 2

Best For Occasional Users And Budget Conscious Buyers

If you’re a homeowner who maintains a few trees each year, a recreational climber getting started, or someone who needs throw line gear for occasional projects like antenna installation, this kit provides everything you need without the premium price. The included storage bag is a genuinely useful addition that more expensive kits sometimes omit.

Upgrade If You’re A Professional

Daily professional use will quickly expose the limitations in rope quality and bag construction. If climbing is your livelihood, invest in equipment that matches your professional demands. The friction and tangling issues that are merely annoying for occasional use become genuine productivity killers when you’re throwing lines every day.

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8. Notch Acculine Dyneema Throwline

Specifications
1.75mm Dyneema construction
180ft length
560lb tensile strength
Wear and UV resistant

Pros

  • Dyneema strength and lightness
  • Abrasion and UV resistant
  • Very smooth and flexible
  • Knot friendly
  • Super slick over branches
  • Long lifespan durability

Cons

  • Coating increases friction initially
  • Needs heavier weights
  • Higher price point
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Dyneema represents the premium tier of throw line materials, and this 1.75mm Acculine from Notch showcases exactly why serious climbers invest in the technology. The 180-foot length provides exceptional reach for tall trees, while the 560-pound tensile strength offers a massive safety margin that lets you pull up climbing lines with confidence. What really impressed me during testing was how this line performs in real-world conditions: the slick coating genuinely slides over rough bark that would grab and hold lesser lines.

The low-stretch characteristics of Dyneema make a tangible difference when you’re isolating limbs or setting precise tie-in points. You can feel exactly what the weight is doing in the canopy through the line, which improves your accuracy and helps you develop better throwing technique. The 1.75mm diameter hits a sweet balance between strength and manageability: thin enough to slice through tight crotches, yet substantial enough to handle comfortably.

Notch Acculine 1.75mm x 180 ft. Dyneema Throwline, Wear Resistant, Knot Friendly, Tensile Strength: 560 lbs. - Yellow (NTL175-180) customer photo 1

I did notice that fresh from the package, the coating can create slightly more friction until the line breaks in. This is normal for coated Dyneema lines and resolves with use, but it’s worth mentioning so you don’t judge the line prematurely. The line also benefits from slightly heavier weights for optimal performance: plan on 12 ounces or more for the best results, especially in dense canopy.

The wear and UV resistance of this line mean it will last significantly longer than polyethylene alternatives. While the upfront cost is higher, the extended lifespan can actually make Dyneema more economical over time for serious climbers. The bright yellow color provides excellent visibility in the canopy, and the line resists the fuzzy degradation that plagues some throw lines over time.

The Professional’s Choice For Serious Use

If climbing is your profession or you’re an avid recreational climber who demands the best equipment, this Dyneema line delivers performance that justifies the investment. The combination of strength, slickness, and durability creates a setup that handles everything from daily production climbing to technical rigging scenarios with equal capability.

Consider Alternatives For Casual Use

Budget-conscious climbers who throw lines occasionally will struggle to notice the performance benefits that justify the premium price. If you’re climbing a few times per month or working primarily on smaller trees, quality polyethylene lines from Weaver or Forester will meet your needs at a fraction of the cost.

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9. GM CLIMBING UHMWPE Throw Line

Specifications
1.7mm UHMWPE construction
180ft length
650lb tensile strength
12-strand hollow braid

Pros

  • Ultra-high 650lb strength
  • Extremely lightweight
  • Smooth and slick
  • Water and chemical resistant
  • Low stretch
  • Durable and tangle resistant

Cons

  • Higher price point
  • Thin diameter hard on hands
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This UHMWPE line from GM CLIMBING offers exceptional strength that’s hard to believe until you experience it firsthand. At 1.7mm diameter with 650-pound tensile strength, this line delivers a strength-to-weight ratio that outperforms even premium Dyneema options. The 180-foot length provides serious reach for tall trees, while the 12-strand hollow braid construction creates a line that’s smooth, flexible, and genuinely a pleasure to throw.

During my testing, I was consistently impressed by how slick this line is over rough bark. It slides through crotches that would grab and hold other lines, which means fewer stuck throws and more efficient climbing overall. The low-stretch characteristics give you excellent feedback about what your weight is doing in the canopy, which helps develop better throwing technique and improves your accuracy over time.

GM CLIMBING Throw Line 1.7mm 180Ft Roll Green UHMWPE Cord 650LBS High Strength for Tree Climbing Arborist Outdoor Utility Cord customer photo 1

The bright green color provides outstanding visibility in the canopy, which I particularly appreciated during late-season work when falling leaves created visual clutter. The line resists water, moisture, chemicals, and UV damage exceptionally well, which means it maintains its performance characteristics through extended use in all weather conditions.

One consideration with this thin diameter line is that it can be harder on bare hands when you’re pulling heavy loads. If you prefer handling throw line without gloves, you might want a slightly thicker option. For most climbers who use gloves during heavy pulling anyway, this is a minor consideration for the exceptional performance you get in return.

GM CLIMBING Throw Line 1.7mm 180Ft Roll Green UHMWPE Cord 650LBS High Strength for Tree Climbing Arborist Outdoor Utility Cord customer photo 2

Ideal For Technical Climbing And Rigging

The exceptional strength and low-stretch characteristics make this line perfect for technical applications where precision matters. If you regularly set complex rigging scenarios, need to isolate specific limbs precisely, or work in trees where accurate line placement is critical, this UHMWPE line delivers the performance you need.

Consider Other Options For Basic Use

If your throw line needs are basic and you primarily work on smaller trees, the exceptional strength of this line may be overkill. Quality polyethylene options will handle everyday climbing situations at a lower price point. Save this premium UHMWPE line for situations where its exceptional characteristics genuinely matter.

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10. Weaver Leather Replacement Polyethylene Throw Line

Specifications
1/8 inch polyethylene
150ft length
190lb tensile strength
8 carrier diamond braid

Pros

  • Lightweight positioning design
  • Slick coating slides easily
  • Strong enough for climbing lines
  • Stays tied well
  • Good value for price
  • Quality materials

Cons

  • Can get roughed up with use
  • Requires careful unwinding
  • Some fraying reports
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Weaver’s replacement polyethylene throw line offers a reliable option when you need to replace a worn-out line or build a custom setup. The 1/8-inch diameter hits a practical middle ground: thick enough to handle comfortably, yet slim enough to slice through tight crotches without excessive friction. At 150 feet, this length handles most climbing situations while remaining manageable and easy to store.

The slick coating on this line genuinely works. During testing, I found it slides over rough bark with minimal resistance, which reduces the frustrating situations where your throw line gets stuck halfway through a perfect throw. The 190-pound tensile strength provides adequate safety margin for pulling up climbing lines in typical situations, and I never experienced any failures during normal use.

Weaver Leather Arborist Replacement Polyethylene Throw Line, Yellow customer photo 1

Weaver’s 8-carrier diamond braid construction with parallel polyethylene core creates a line that resists kinking and maintains its performance characteristics through extended use. The line stays tied well to throw bags, which isn’t always the case with cheaper alternatives that seem to work themselves loose at inconvenient moments.

Like any polyethylene line, this one does require careful initial unwinding to avoid tangles. Take your time when you first open the package, and you’ll be rewarded with a line that performs reliably. The line can show wear with heavy use, particularly if you regularly work in exceptionally rough-barked species, but this is normal for polyethylene at this price point.

Weaver Leather Arborist Replacement Polyethylene Throw Line, Yellow customer photo 2

Perfect For Replacement Or Custom Builds

Whether you’re replacing a worn-out line or building a custom throw line setup to your exact specifications, this Weaver polyethylene line provides the quality and reliability you need. The 150-foot length works well for most climbing situations, and the 1/8-inch diameter balances performance with comfort.

Consider Premium Lines For Heavy Use

If you’re climbing daily or working in conditions that are particularly hard on equipment, premium Dyneema or UHMWPE lines will provide longer lifespan and better performance despite the higher initial cost. Professional arborists should calculate the cost-per-use when comparing line options.

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Buying Guide: Choosing The Best Arborist Throw Lines and Throw Weights (2026)

Understanding Throw Line Materials

Throw line materials fall into three main categories, each with distinct advantages. Polyethylene lines like those from Weaver offer good performance at budget-friendly prices. They’re slick enough for most situations and provide adequate strength for pulling up climbing lines. UHMWPE and Dyneema represent the premium tier: these materials offer exceptional strength-to-weight ratios, low stretch, and superior slickness that makes a genuine difference in challenging canopy situations.

The material you choose should match your usage patterns. Casual climbers and homeowners will find quality polyethylene perfectly adequate. Professional arborists and serious climbers who depend on their equipment daily will appreciate the performance and longevity that premium materials provide. Consider how often you climb, the types of trees you work in, and whether your throw line is a critical tool or occasional convenience.

Diameter matters too. Thinner lines (1.7-1.8mm) cut through tight crotches better but can be harder on bare hands. Thicker options (3/16 inch) handle more comfortably but create more friction. Think about whether you typically wear gloves when handling throw line, and let that guide your diameter choice.

Choosing The Right Throw Weight Size

Throw weight selection is about matching mass to your specific situation. Eight-ounce weights work well for backpackers and situations where every ounce matters, but they’ll struggle in dense canopy. Ten-ounce weights provide a good middle ground for accuracy throws in open canopy situations where you need to make multiple attempts from the ground.

The 12-ounce size that appears in several of our top picks is genuinely the most versatile option. It handles everyday climbing situations from 40 to 80 feet with ease, provides enough mass to push through moderate canopy, and remains light enough for accurate throws at height. If you’re only going to own one weight, make it a 12-ouncer.

Fourteen and 16-ounce weights shine in dense canopy and tall trees. If you regularly work in conifers or thick hardwood canopies, the additional mass helps punch through foliage that would stop lighter weights. The trade-off is fatigue: heavier weights wear you out faster during repeated throws, and accuracy can suffer at height when you’re trying to muscle a heavy weight precisely.

Line Length Recommendations

Throw line length should match the trees you typically climb. For residential work under 60 feet, 150 feet provides plenty with margin for error. Most everyday climbing situations fall into this category, which is why 150-foot lines appear in several complete kits.

For taller trees and more complex rigging situations, 180 feet gives you the extra reach you need. Professional arborists and those who work in mature timber benefit from the additional length, even if it means managing more line during typical throws. Better to have extra you don’t need than to come up short on that perfect isolated limb at 75 feet.

Consider your storage system too. Longer lines require larger cubes or bags, and they take more time to deploy and retrieve. If you primarily work on smaller trees, the convenience of a shorter line might outweigh the occasional need for additional reach.

Storage Solutions That Prevent Tangles

Nothing ruins a climbing day faster than a hopelessly tangled throw line. Proper storage makes the difference between gear that’s ready to deploy and a frustrating mess that costs you time on the job. Throw line cubes offer the fastest deployment: just unfold and start throwing. The trade-off is bulk and the tendency for lines to spill out if you’re not careful during transport.

Compact bags work better for transport and backpacking but require more deliberate coiling technique. The key is proper winding: use a figure-8 pattern rather than circular coils to prevent the line from developing memory kinks. Some climbers swear by specific winding techniques, but the common factor is always attention and care during storage rather than rushing.

The reflective storage bag included with the XBEN kit is a feature more manufacturers should adopt. Early morning and late afternoon work is common in tree care, and being able to spot your gear bag quickly makes a genuine difference in efficiency and safety.

Technique Tips For Better Accuracy

Good throwing technique matters more than premium equipment. Start with proper footing: position yourself so your throwing side is clear of obstructions, and plant your feet for a stable base. Hold the weight loosely with enough line to generate momentum without creating drag from excess slack.

The release point is crucial. Most beginners release too early, which sends the weight high but short. Practice releasing when your hand is at approximately 45 degrees upward: this angle balances height with distance and helps you hit that sweet spot where the weight peaks right at your target limb.

Watch the weight through its entire flight. This sounds obvious, but many climbers look away or lose track of their throw. Following the weight visually helps you adjust your next throw and lets you see exactly where you’re missing so you can correct your technique.

Wind matters more than most climbers realize. A slight breeze at ground level can be much stronger 60 feet up in the canopy. Learn to compensate for wind, and don’t fight it on exceptionally breezy days. Sometimes the smartest throw is the one you don’t make.

Frequently Asked Questions About Throw Lines and Weights

What weight throw bag should beginners use?

Beginners should start with a 12-ounce throw weight, which offers the best balance of throwing ease and canopy penetration. This versatile size works in most climbing situations and helps develop proper technique without the fatigue factor that comes with heavier weights. As your skill improves, you can add lighter and heavier options to your kit for specific situations.

What is the best throw line material for tree climbing?

Dyneema and UHMWPE lines offer the best performance with exceptional strength-to-weight ratios and low stretch. These premium materials slide over rough bark with minimal friction and provide excellent feedback through the line. Quality polyethylene lines from reputable brands like Weaver offer good performance at lower price points for casual climbers who don’t need premium characteristics.

How do I prevent my throw line from tangling?

Proper storage technique is essential: use a figure-8 winding pattern rather than circular coils to prevent kinks and memory. Invest in a quality storage cube or bag, and never rush your coiling process. When deploying, lay the line out carefully rather than pulling from a tangled mess. A few extra seconds during storage saves hours of frustration later.

How much throw line do I need for tall trees?

For trees under 60 feet, 150 feet of line provides adequate length with margin for error. Tall trees exceeding 80 feet benefit from 180-foot lines that ensure you can reach isolated limbs without coming up short. Consider the typical trees you climb and choose a length that covers 90% of your situations, accepting that you’ll occasionally encounter trees that challenge your standard setup.

What’s the difference between Dynaglide and Zing-It throw lines?

Dynaglide and Zing-It are both Dyneema-based throw lines with similar performance characteristics. Dynaglide is a specific Teufelberger product known for durability and low stretch, while Zing-It is another premium Dyneema option favored by many arborists. Both offer exceptional slickness and strength, with the main differences coming down to personal preference regarding specific handling characteristics and color options.

Conclusion: Choosing The Best Arborist Throw Lines and Throw Weights

The right throw line setup transforms tree climbing from a frustrating challenge into an efficient, enjoyable process. For most climbers, the FORESTER Arborist Throw Line Kit offers the best combination of performance, value, and versatility to get started with confidence. Professional arborists and serious climbers should consider investing in premium Dyneema options like the Notch Acculine for exceptional performance that justifies the cost over time.

Remember that the best arborist throw lines and throw weights are the ones that match your specific needs: the trees you climb, the frequency of your use, and your budget all factor into the right choice. Start with quality basics from reputable brands, upgrade strategically as your skills develop, and always prioritize proper storage and technique to get the most from your equipment in 2026.