Teufelberger 8mm Sewn Eye-to-Eye Prusik

The Teufelberger 8mm sewn eye-to-eye prusik is a ready-made hitch cord with a sewn eye at each end, built for tying friction hitches on your climbing line. The slim 8 mm diameter grabs firmly and tends smoothly on many common arborist ropes.

Why 8 mm

Hitch cord diameter sets how a hitch grips. An 8 mm cord bites harder than a 10 mm cord on the same rope, so it suits climbers on slimmer lines or anyone who wants a hitch that grabs quickly. Sewn eyes are compact compared with knotted ends, which keeps the hitch short and closer to your hand.

How it behaves depends on your rope, hitch and climbing weight, so test it low before trusting it. Other cords are in eye-to-eye prusiks.

An 8 mm cord is also lighter and less bulky on the saddle, which some climbers like for a backup or a second hitch on a dual system. The trade-off is that slimmer cord can wear faster than a thicker one, so check it closely and keep a spare in the bag.

Set up and care

Tie a hitch you have been trained on, dress it neatly, and test it close to the ground before climbing. If it slips or binds, adjust wraps and braids. Pair it with a micro pulley to tend the hitch smoothly.

Friction hitches build heat, so watch for glazing, stiffness and fuzzing, and replace the cord at the first sign of damage or wear in the sewn eyes. A hitch cord is life-support gear: follow Teufelberger's instructions and ANSI Z133 and inspect it before every climb.

Carry the spare in a clean bag so grit does not get into the fibers before you need it.