Omega can't leave well enough alone. Their Ice Screw was already one of the most popular screws on the mountain, but they figured out how to make them place even faster, hold even stronger and resist corrosion even better. Omega redesigned the lead tooth profile and back-pitch on the threads to make them bite aggressively into even the coldest, most brittle ice. The new plating process provides incredibly improved corrosion-resistance. These affordable screws deliver more performance than others costing twenty dollars more. Each screw is equipped with the Speed Grinder knob system. No more grappling with folding levers, knobs, or cranks, the Speed Grinder is always deployed and ready. Specs: Body Material: 4130 CrMo Hanger Material: 4130 CrMo Weights: 11cm (4 oz), 17cm (6 oz), 22cm (6.1 oz)