Designed for Tyrolean traverses on cable or rope. Maximum allowable speed: 20 m/s * Sheaves mounted on sealed ball bearings for sustained speed, independent of the weight of the person, temperature, or humidity * Stainless steel sheaves for excellent durability. Accepts up to three carabiners to facilitate use * CE / UIAA certified. Efficiency: 95%. Breaking strength: 24 kN. Working load: 10 kN. Sheave: 27.5mm, self-lubricating bushings * For use on cable (maximum diameter of 12 mm) & on rope (maximum diameter of 13 mm) Weight 9.5 oz (270g)