ART Lockjack Sport with Swivel Size:11-12mm / 12-13mm Loads up to 272kg

Loads up to 272kg

which makes the Pro Step very comfortable when climbing or standing

stiff wrap

The design is compact and the unique upper sheave design is quick to open & close and secures easily

LENGTH: 180mm

ART Lockjack Sport with Swivel Size:11-12mm / 12-13mm Loads up to 272kgThe 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