Wire Cage & Leather Muzzle (Miami). Size 10, Black. 15.5" circumference, 5" length. Best fits large-size dogs like: Great Danes, Cane Corso, Mastiffs 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 large-size dogs like: Great Danes, Cane Corso, Mastiffs 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