Specifically designed for indoor climbing, the Edelweiss O Flex 9.8 mm rope features a high tech core and extra smooth sheath for increased suppleness and improved longevity.. . This product will be shipped directly from Edelweiss and will leave their warehouse in 2 3 business days. Eligible for UPS ground shipping only.. . . . O Flex process uses an innovative braiding system and a unique, helix pattern core that retains its roundness better than traditional ropes. HD Cover braiding technology produces a smoother rope surface which is more comfortable to handle and more abrasion resistant. Super smooth HD sheath weave reduces rope drag and increases rope life in gyms. 9.8 mm diameter is great for clipping biners on sport routes.