STC Equi-Prene grazing muzzle is a nylon webbing material with rubber inserts and muzzle bottom used to provide a strong and durable muzzle with no-rub padding for extra comfort. Adjustable nylon web straps each side and a snap latch on the throat strap. Heavy duty D ring attached to clip a lead to. Yearling - Inside circumference, 47cm. Top diameter, 16cm. Muzzle depth, 14cm.