ART Lockjack Sport with Swivel Size:11-12mm / 12-13mm Includes 2 hex bolts

Includes 2 hex bolts

This is the newly designed Stiff Tether from Gravity Lab

which makes the Pro Step very comfortable when climbing or standing

the TANDEM has aluminum sheaves mounted on self-lubricating bushings for efficiency

ART Lockjack Sport with Swivel Size:11-12mm / 12-13mm Includes 2 hex boltsThe 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