Grivel's easiest ice screw. Easy to get the first bite in the ice thanks to its symmetrical grip. Easy to screw in thanks to the handle on the grip. Easy to attach to a carabiner thanks to the shape of the ring. Easy to carry on the rack with a carabiner, even several at a time. You'll find that Helix has all the fantastic qualities found in other Grivel screws, the ones that have made them famous worldwide as the reference in ice screws. The huge technological capacity and large quantities of production allow Grivel to offer a high quality product at an extremely competitive price. You won't find anything else on the market with the same quality/cost ratio. Weight: 12 cm - 145 g, 5.1 oz Weight: 16 cm - 168 g, 5.9 oz Weoght: 20 cm - 191 g, 6.7 oz CE Certified"