The Rope Wrench is a fixture of production climbing and competition. It puts an S-bend in the rope above your hitch, creating a contained double-rope effect on a single line. The climber's weight is shared between the Wrench and the hitch, so the hitch runs smoothly without glazing or grabbing.

Fits 11 to 13mm rope and pairs with ISC tethers, including the Squirrel and Squirrel FLEX. Not for primary life support on its own: see kit KT282 for the CE-certified system. Available in red, purple or grey. Made by ISC in North Wales.