Edge Lined Leather Collar features: cow hide leather. Nickel free metal hardware. Solid, metal D-Ring faces front for easy attachment. Lined leather collar fits necks from 12 inches to 20.5 inches. Materials: cowhide leather, nickel free metal, polyester, polyurethane. Includes: 1 lined leather collar fits necks, inside diameter from 3.5 inches to 6.05 inches. One size fits most. Color Black. Please note leash not included. Edge Chain Leash sold separately item number SS98029. 18.