ART Lockjack Sport Basic Size:Suits 11mm-13mm ropes Height limit: 6' tall /

Height limit: 6' tall / 180 cm

3kN - Not PPE

The benefits of this is that you never have slack in your rope while ascending and it's easier than hauling yourself up

- steel construction for improved durability

Breaking Strength

ART Lockjack Sport Basic Size:Suits 11mm-13mm ropes Height limit: 6' tall /The 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