Without question, the Black Diamond Express Screws are the easiest and fastest placing ice screws to ever sink their way into ice. In desperate situations, every second counts. Quick to bite and easy to crank in. 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.