Double pulley with stainless steel sheaves and ball bearings Designed for Tyrolean traverses on cable or rope. - Stainless steel sheaves for excellent durability. - Sheaves mounted on sealed ball bearings for sustained speed, independent of the weight of the person, temperature, or humidity. - Maximum allowable speed: 20 m/s. - Accepts up to three carabiners to facilitate use. Certification CE / UIAA Technical specifications Breaking strength: 24 kN Working load: 10 kN For use on cable (12 mm maximum diameter) and on rope (13 mm maximum diameter) 270 g