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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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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KONG Duck Rope Clamp/Ascender Black

Product ID: 511081133

Details

Colour
Black
Brand
Kong
Material
Nylon Metal
Fit Type
adjustable
Product Care Instructions
Hand Wash Only

🪢Works on 10-15mm webbing

⚙️One-hand easy insertion

🧗‍♂️Fits 8-13mm ropes

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TrustScore 4.5 | 7,300+ reviews

Description

🦆 Duck your way to safer climbs with the ultimate emergency blocker!

WIDE ATTACHMENT HOLE - Enables smooth rotation of ring carabiners, enhancing maneuverability and safety.
COMPACT LIGHTWEIGHT - At just 70g and pocket-sized, it’s your go-to emergency blocker that won’t weigh you down.
WEBBING READY INNOVATION - World’s first blocker to function on flat and tubular webbings 10-15 mm wide—expand your rescue toolkit.
VERSATILE ROPE COMPATIBILITY - Seamlessly grips single ropes from 8 to 13 mm for ultimate reliability.
EFFORTLESS ONE HAND OPERATION - Designed for quick, intuitive use when every second counts in self-rescue or recovery.

The KONG Duck Rope Clamp/Ascender is a cutting-edge emergency blocker engineered for single ropes (8-13 mm) and uniquely compatible with flat and tubular webbings (10-15 mm). Lightweight and compact at 70g, it features one-hand insertion and a wide attachment hole for versatile carabiner rotation, making it indispensable for self-rescue, recovery maneuvers, and rope progression.

Specifications

ASIN	B00U2TIQUK
Country of Origin	USA
Department	unisex-adult
Item Dimensions LxWxH	15.2 x 7.6 x 2.5 Centimeters
Item Weight	70 g
Item model number	88800NN00KK
Manufacturer	Kong
Product Dimensions	15.24 x 7.62 x 2.54 cm; 70 g

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