Petzl - TWIN ZCS1713 and a retraction brake

and a retraction brake

and follow all instructions

Profiled with an opposing bevel grind and featuring a partially serrated edge

Snubbing loads

Petzl - TWIN ZCS1713 and a retraction brakeHigh strength, very high efficiency double Prusik pulley TWIN is a high strength double pulley designed for rescue professionals. It is designed to set up progress capture systems of high mechanical advantage. Special side plates designed for use with a Prusik friction hitch in progress capture systems Parallel mounted sheaves and auxiliary attachment point for creating different types of hauling systems, including the most complex Large diameter