Edelweiss Rocklight Ii 9.8mm X 50m. Rocklight is 9.8mm in diameter to excel in sport climbing and when weight savings is important. The Essential line of ropes delivers impressive stats that beat the competition with a low impact force of 8.1kN. Features of Edelweiss Rocklight Ii: Weight: 61 g/m Impact force: 8.1kN UIAA falls: 6 Mid Rope Indicator CE and UIAA Certified - Single Rope Package Contents: Edelweiss Rocklight Ii