Deluxe Grazing Muzzle is our most popular grazing muzzle. This all-in-one design does not require a halter and uses a breakaway plastic buckle in the headstall for safety. The plastic buckle on the headstall will hold in place under normal circumstances, yet will break away should your horse become entangled and struggle to get free. The replacement buckle (included) is attached without sewing. Most horses wear their halter size.