This luxury leather BDSM collar comes with a fully adjustable metal buckle fastening that's adjustable up to 21 inches in circumference. It also measures 4 inches in width and is cushioned for comfort. Decorated with metal rivets, this slave collar has 3 sturdy metal O-ring hooks so that leashes and other restraints can be attached to it. Just think of the possibilities. 100% real leather. Wipe clean.