Petzl Ring OPEN Pulleys the Lockjack works as both

the Lockjack works as both an ascender and as a descender in the doubled rope technique (DdRT)

and finally

Most ovals haven't changed much since the dawn of time

Colour anodised to BS EN 7599:2010 AA10 Sealed for corrosion protection and identification

Petzl Ring OPEN Pulleys the Lockjack works as bothNew gated anchor ring from Petzl, now with a wider opening to allow fitment of a rope bridge to the new Sequoia harness. If you have a first generation Sequoia and want to update to the rope bridge you can by replacing your old rings with this style. The RING OPEN gated ring is designed for the semi permanent connection of equipment. Its round shape ensures optimal functioning in all directions. It has a wide opening that allows installation of ropes