No other leash offers the same level of comfort quality, design, construction, durability, and functionality.The Variable Bicep Leash offers a two-buckle neoprene cuff that allows the rider to cinch the cuff for a tighter more secure fit.  In addition by eliminating one of the buckles it can expand the circumference of larger biceps or wetsuit sleeves. Cuff Fits 9 - 15" Double Buckle System Thicker Grade Urethane Cord The unique compact spiral chord is never in your way One-piece fusion molded urethane....no glues seams or joints Dual split ring for strength with ergonomic bow tie webbing Constructed from the most durable and reliable materials Specifically engineered for ultimate strength and elasticity Marine-grade swivels , doubled at both cuff and plug ends Comes with a fully threaded three cover plug