PETZL - Laser Speed Light, Ultralight Ice Screw with Integrated Crank MAXIMIZED WEIGHT REDUCTION: Ultralight aluminum tube, ideal for mountaineering when reduced equipment weight is a priority. EASIER BITE: The shape of the drill is optimized to facilitate bite into the ice. QUICK: Integrated flexible crank provides excellent grip and an optimized lever, making it easier and faster to screw in. DURABLE MATERIAL: Materials include a steel drill, anodized aluminum tube, and aluminum hanger. FULLY EQUIPPED: Color-coding facilitates identifying the length of a screw.