Design and Details Top-level ice screws designed for advanced alpinists and ice climbers Lightweight, strong and durable chromoly steel construction Reverse angle threads for smooth driving and maximum holding power Front teeth engineered for the fastest and easiest placements even in the coldest, most compact ice Chromoly steel hanger aligns with the screw to pull in an optimal direction for maximum holding power and racks well on either side of the harness Fold out crank knobs are color coded for easy identification EN 568 certified