1" or 3/4" X 24" PVC collars or replacement straps Tightly spaced holes to ensure correct fit, completely customizable Metal buckle for easy fastening on your dog, metal strap keeper for added safety collar keeper included. Metal D-ring for quick leash attachment, won&';t tarnish Waterproof and rustproof Easy to clean Durable, soft and comfortable to wear Available in Black, Red, Green, and Orange Our collars are solid vinyl and won&';t delaminate like others on the market!