Super-light with great handling, the Petzl Fuse's stout sheath provides durability for sport climbing or fast and light adventure climbing. The perfect balance between weight and durability. Specs: Diameter: 9.4 mm Type: Single Rope Weight: 56 g/M UIAA falls: 6 Impact force: 8.25 kN Elongation: 7.2 % Sheath Percentage by weight: 33.3 %