When you are ready to push your sport or trad climbing to the limit, the Sterling Nano 8.9 mm XEROS is the tool to take along. This UIAA triple rated rope gives you unsurpassed performance per gram when you&&';;re going for the send. Specifications:- Brand: Sterling Diameter: 8.9 mm Rope Treatment: Dry Core & Sheath Rope Type: Single / Twin / Half Middle Mark: Yes on 60M and longer Bi-Pattern: No Grams/Meter: 52 UIAA Fall Rating: 6 | 16 | >20 (Single | Half | Twin) Impact Force (kN): 8.5 | 6.6 | 10.4 (Single | Half | Twin) Dynamic Elongation %: 33.1 | 27.6 | 25.3 (Single | Half | Twin) Static Elongation %: 7 | 7 | 3.6 Weight:- 40m: 4.59 lbs / 2.08 kg 60m: 6.88 lbs / 3.12 kg 70m: 8.02 lbs / 3.64 kg 80m: 9.17 lbs / 4.16 kg Other Features:- UIAA Dry certified built with Sterling XEROS technology Made with bluesignA(R)-certified raw materials Includes a middle mark for lengths 60M and longer UIAA 101 | EN 892