ART Lockjack Sport with Swivel Rigging Plates & Hubs It's very sensible to replace

It's very sensible to replace these to maintain the level of noise protection

Max User Weight > 240kg (500lbs)

making for a smooth splicing experience

Clip-on neck protection from the elements

can hold 15kg

ART Lockjack Sport with Swivel Rigging Plates & Hubs It's very sensible to replaceThe 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