Black Diamond Express Ice Screw Designed tooth geometry for easier starts. Larger crank knobs are easier to grab. Augmented hanger with second clip-in point for belay organization. Taped tube where teeth cut hole just larger than tube itself for less friction and faster placements. Foldable speed-drive knob offers uninterrupted 360-degree motion. Color coded for length for quick identification. Stainless steel hangers are lighter than ever, won't rust, and reduce melt-out on sunny routes. Built in multiple lengths to accommodate a variety of ice conditions. 10 kN strength for all sizes. All screw sizes are now CE-certified. Patented.