All Kangaroo 5/16" Bosal with rawhide core — 12 plait with 24 plait noseband. Choose between four options: The small under bridle bosal measures: 5" x 8" - it is intended to be used under a bridle with 3/8" or 5/16" bridle lead. The under bridle bosal measures: 5" x 9" - it is intended to be used under a bridle with a 1/2", 3/8" or 5/16" bridle lead. The regular two-rein bosal measures 5" x 10" - it is intended to be used in a two-rein setup with a 3/8" or 5/16" 22' mecate. The large two-rein bosal measures 5" x 10.5"- it is intended for the larger headed horse to be used in a two-rein setup with a 3/8" or 5/16" 22' mecate. Martin Black is very particular about how his gear functions, the bosal hanger plays a large role in that. Every bosal comes with a hand braided bosal hanger, made to Martin’s specifications. Leather used may not match bosal color. Bosals can be purchased without a hanger upon request.