With a high-tech core, the O-Flex is ideally suited to indoor climbing. A core crafted in a helix pattern lets the rope keep its round shape longer than most traditional climbing models, while a smooth HD sheath reduces drag to improve its lifespan.. This product will be shipped directly from Edelweiss and will leave their warehouse in 2-3 business days. Eligible for ground shipping only.. . Weight: 65 g/m. Impact force: 8.2kN. UIAA falls: 8. CE and UIAA Certified - Single Rope. Imported.