Hook these mini ascenders to your feet and climb lines with greater ease than you ever imagined! Proprietary rollers positioned where the rope tends to rub on the body of a traditional ascender ensure smoother action and a longer product life for both the ascender and the rope. The toothed cam is finished with a special anti-wear treatment and features drain holes to help prevent the build up of mud, grit and ice. The innovative strap design provides a secure fit to any kind of boots or shoes and aligns the straps with direction of the forces being applied for optimal comfort and efficiency. For ropes 8 to 13 mm. Each weighs 135g / 4.8oz.