Superior Burn. Superior Results. The Leather Tricep Strap features edges that won't pinch, scrape or cut, and a patented lambs wool lining that allows your hands to breathe while in use. It can be used for Tricep Pressdowns, Ab Crunches, Bicep Curls, Tricep Extensions, Front and Side Deltoid Raises and more. The strap will last forever! 350 lb capacity.