Browning Ovis Classic Webbing Dog Collar - Constructed with reflective stitching, keeping your dog safe in darker lighting. The unique locking buckle secures the collar to the dog to prevent loss while our exploring and playing. Durable nylon webbing Adjustable Reflective stitching Locking buckle Sizing: Small: 10in-16in L x 5/8in W Medium: 14in-20in L x 1in W Large: 18in-28in L x 1in W