Description of Edelweiss Sharp 8.5mm x 70M Rope A half rope of exceptional performance for all who prefer the two-rope protection system. It has all the attributes and benefits of its big brother the 10.5mm single rope. Features: Diameter - 8,5 mm Weight - 48 g/m Elongation 5-80 kg - 10 % Impact force - ~ 5,40 kN Falls / Average of tests UIAA - 9