Wire Cage & Leather Muzzle (Miami). Size D2, Black. 11.5" circum., 5.25" length. For longer snouts: Doberman Pinschers, Shepherd, Collies, Pointers Constructed of 100% genuine cowhide and metal Available in Black and over 25 sizes to fit practically every breed Felt-lined nose guard for comfort; Well ventilated and allows for dogs to drink Best fits dogs with longer snouts like: Doberman Pinschers, Shepherd, Collies, Pointers To fit correctly, measure: length from dog's eyes to the tip of the nose; circumference from 1 inch below the eyes and around the snout