Custom Made Nubble Light Collars are available in 1-¼” widths only. All Preston pet products are made with durable nylon webbing. Collars feature Delrin Acetal side release buckles for ease of fastening and separating and solid nickel plated “D” rings for strength. The collars are easily adjusted for length and are available in 3 sizes. All Preston collars, leads, and harnesses are 100% guaranteed for materials and workmanship. We manufacture all of our pet products in Ipswich, Massachusetts.