ART Lockjack Sport with Swivel Size:11-12mm / 12-13mm Course screen has 16 notches

Course screen has 16 notches / cm²

easier to pull from the ground

It can also be utilized for 2

Air storage insulates and cools

ART Lockjack Sport with Swivel Size:11-12mm / 12-13mm Course screen has 16 notchesThe Lockjack was the first piece of hardware on the market that could totally replace the friction hitches used on climbing lines. Like a Mechanical Prusik, the Lockjack works as both an ascender and as a descender in the doubled rope technique (DdRT). The advantage of the Lockjack is that friction is applied to the rope with a smooth aluminum surface which causes less friction while climbing for an effortless advance, and a smoother more easily