The Weaver Equine Working Cowboy Single Link Chain Horse Curb Strap is a heavy harness leather 5/8 in. curb strap dipped in oil, dressed with butter and hand rubbed for the ultimate in performance and a rich golden chestnut color. The horse curb strap features a 4-1/2 in. single flat link chain and non-rust stainless steel hardware. A horse curb strap is an important piece of tack that applies pressure under the horse's chin to help with the leverage and timing of a curb bit. This horse curb strap is durable and long-lasting.