Does the cam have teeth or grooves? Is it rough on the rope?

The cam doesn't have sharp teeth like most, but does have rounded ridges to grab the rope. I wouldn't be concerned about it damaging a rope sheath if you're using it as intended (not as a fall assessor).

Would this work on a lineman’s rope for like say putting up tree stands?

Absolutely. That is what I use it for. Works perfectly.

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Kong Italy - Duck Alu Alloy Black | climbing-active-protection-hardware

Product ID: 16589078

Details

Brand
Kong Italy
Color
Black
Fit Type
Universal
Material
Multi
Product Care Instructions
Hand Wash Only

⚙️works on 10-15mm webbing

🖐️one-hand easy insertion

🧗‍♂️8-13mm rope compatible

¥22657

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Description

🦆 Duck your limits—innovate your climb with Kong Italy’s emergency blocker!

COMPACT ERGONOMIC - Ultra-small design allows effortless one-handed insertion, perfect for high-stress emergency scenarios.
WIDE ATTACHMENT HOLE - Enables smooth rotation of ring carabiners, enhancing maneuverability and safety during climbs.
MULTI USE EMERGENCY TOOL - Ideal for recovery maneuvers, self-rescue, and as a regulator for caliper or daisy webbing—your all-in-one climbing ally.
WEBBING READY INNOVATION - The world’s first blocker to function on flat and tubular webbings 10 to 15 mm wide—expand your rescue and progression options.
VERSATILE ROPE COMPATIBILITY - Engineered for single ropes from 8 to 13 mm, ensuring seamless integration with your climbing setup.

The Kong Italy Duck Alu Alloy Black is a cutting-edge emergency blocker designed for single ropes (8-13 mm) and flat/tubular webbings (10-15 mm). Compact and lightweight (70g), it features a wide attachment hole for carabiner rotation and supports critical climbing maneuvers like self-rescue and recovery. Trusted by professionals, it’s a must-have for serious climbers seeking versatile, reliable protection.

Specifications

ASIN	B00U2TIQUK
Age Range Description	Adults
Apparel Fabric Stretch	No Stretch
Apparel Fabric Weight Class	Lightweight
Best Sellers Rank	#40,704 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #5,748 in Climbing Equipment
Brand Name	Kong Italy
Collection Name	All
Color	Black
Customer Reviews	4.8 4.8 out of 5 stars (374)
Fabric Type	Verschiedene
Fit Type	Universal
Garment Size Country	United States
Global Trade Identification Number	08023577014678
Import Designation	Imported
Included Components	Climbing Ascenders
Item Weight	0.07 kg
Item Width	5 inches
Manufacturer	Kong
Material	Multi
Number of Items	1
Number of Packs	1
Part Number	88800NN00KK
Pattern	Solid
Product Care Instructions	Hand Wash Only
Size	One Size
Style	Climbing Ascenders
Style Number	88800NN00KK
Unit Count	1 Count
Warranty Description	Limited Warranty
Weight Capacity Maximum	70 g

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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¥22657

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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