GET READY TO CLIMB HARDThe Rocklight II is part of the Edelweiss Essential Line, a range or ropes developed for top performance at a bargain price. Rocklight is 9.8 mm 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 such as a low impact force of 8.1 kN for the Rocklight. FEATURES61 grams/meterUIAA Fall Rating: 6 8.1 kn impact force