This intense piece is not just for show. The sharp spikes lining the front are accented by 4 metal D-rings, to which a variety of accessories may be attached. The collar has a rolling locking buckle so you can keep your pet on a tight leash. Measurements: 24 inches in total length, adjusts from 15 to 21 inches in circumference, 2 inches in width. Material: Leather, metal. Color: Black. Note: Locks sold separately