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The Quickstep 1-Step adjust etrier from Petzl is great from aid climbing. Equipped with a string, which allows the carabiner to be held in the major axis position(the strongest) and protects the carabiner attachment loop from wear.
Petzl Quickstep Etrier DECENT FEATURES of the Petzl Quickstep Etrier Rapid length adjustment via the DoubleBack buckle Equipped with a STRING, which holds the carabiner in position and protects the carabiner attachment loop from wear 3 mm hole in buckle for attaching a release cord to facilitate adjustment Loop on the free end of the webbing for attaching a piton during placement Foot retention system helps keeps your foot in the step while jugging
Adjustable foot loop for easy ascension off fixed protection. Totals 7 feet 7 inches in length.. . . Attach to a fixed bolt, adjust for desired foot height, and simply step up. Made of 3/4-inch nylon webbing
Efficiency is essential on big aid routes, which is why the single-step Petzl Quickstep Adjustable Etrier utilizes a DoubleBack Buckle for quick and secure length adjustment. Plus, the adjustable strap in the foot loop prevents your shoe from slipping out.