The easiest and fastest placing ice screws on the planet, the Black Diamond Express Ice Screw features a tapered tube where the teeth cut a hole just larger than the tube itself, for less friction during placements. A large, color-coded crank knob makes for easy size identification and uninterrupted 360-degree motion.  Advanced tooth geometry for easier starting and faster placement Larger crank knobs with uninterrupted 360° motion Stainless steel hangers with two clip points Available in five lengths, color-coded for quick indexing CE certified, patented Weight : [10 cm] 121 g (4.3 oz) [13 cm] 138 g (4.9 oz) [16 cm] 146 g (5.2 oz) [19 cm] 159 g (5.6 oz) [22 cm] 175 g (6.2 oz) Strength : 10 kN (2248 lbf) Materials : [Screw] chromoly [Hanger] stainless steel