Showman &reg; Pony Size Nylon Bling Headstall and Breast Collar Set. Headstall comes with matching nylon hook and loop split reins PONY SIZE Renins are 5/8" X 7' Headstall adjusts 11.5" to 15" crown to bit loop Breast collar measures 13.25" from center ring to top ring and is 1.5" wide