PETZL Paso 7.7 mm x 70 m Dry Climbing Rope, Orange Diameter: 7.7mm - Type: half, twin rope UIAA Falls: 7 (half), &gt;20 (twin) Impact force: 5.9kN (double), 9.2kN (twin) Static elongation: 8.5% (double), 7% (twin); Dynamic elongation: 31% (double), 30% (twin) Duratec Dry Treatment; Middle mark