Besides being one of the lightest half ropes on the market, the Petzl Dragonfly is also super durable, with over a third of its fiber content in the sheath. Perfect for ice and alpine climbing, mountaineering and wandering rock routes. Specs: Diameter: 8.2 mm Type: Half Rope / Double Rope Weight: 41.8 g/M UIAA falls: 6 Impact force: 5.07 kN Elongation: 8 % Sheath Percentage by Weight: 36.6 %