Country Brook Design Nature Walk Ribbon Collar - Large 80% nylon/5% plastic/5% polyester/10% nickel Made in USA Collar fits 16in- 22in neck- There are no standard sizes for dog collars. Please be sure to measure your dogs neck for correct size. Measure around your dogs neck (with string or tape measure) snugly where you want the collar to lay. If you have any questions or problems with sizes please give us a call before ordering. If you have any questions or problems with sizes please give us a call before ordering. 256-974-0700 Breed Recommendation: Pitbull, German Shepherd, or Golden Retriever Made in U.S.A. with top quality hardware Grosgrain Ribbon sewn atop 100% nylon