Country Brook Design&Acirc; Oh My Dog Half Check Collar - Large 80% Polyester/10% Plastic/10% Nickel Made in USA Collar fits 16in-22in neck - Please be sure to measure your dog's neck for correct size. Measure around your dogs neck (with string or tape measure) snugly where you want the collar to lay. Made in the U.S.A. Made using top quality hardware Made with patterned polyester webbing