ART Lockjack Sport Basic Protos Helmet Accessories • Compatible with DMM Ultra

• Compatible with DMM Ultra O and Boa carabiners

rope diameter: 7 mm

fully adjustable anchor point on the 'snap' end of any rope lanyard

rope clamps and mobile fall arresters

Gate Opening : 19mm

ART Lockjack Sport Basic Protos Helmet Accessories • Compatible with DMM UltraThe 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