1 inch width. Adjustable nylon dog collar. Not for tie-out use. For large breeds: Afghan Hound; Akita; Alaskan Malamute; Basset Hound; Bearded Collie; Bouvier; Boxer; Bulldog; Bull Terrier; Chinese Shar-Pei; Chow; Collie; Doberman Pinscher; English Setter; German Shepherd; Golden Retriever; Great Dane; Irish Setter; Labrador Retriever. Made in Taiwan.