The 3118 Big Buck™ climber pad utilizes a double strap system, that fits 1? and 1 1/4? straps, to secure the pad to the calf resulting in superior support of the leg. An angled metal insert prevents the climber shank from shifting on the calf and the thick felt padding adds to the overall comfort. Comes with 2 pair of 2639 straps (Big Buck pads require 2 pair of leg straps). Measures 9? H x 12 1/2? W.