PETZL Quickstep Etrier QUICK ADJUSTMENT: The QUICKSTEP allows for rapid length adjustment via the DoubleBack buckle. SECURE: The QUICKSTEP is equipped with a STRING protector that holds the carabiner in place and protects it from wear. ATTACHMENT: Attach a cord for easy adjustment to the 3 mm hole in the buckle. The loop on the free end allows you to attach a piton during placement. STABLE FOOTING: The foot retention system helps keep your foot in the step while ascending. DURABLE: The nylon webbing, aluminum, and heat-treated steel make for a strong, durable device.