All Dixie Lane collars are completely adjustable. This collar comes in a width of 5/8", 3/4", 1” and 1.5". Hardware includes a YKK black plastic buckle, heavy welded d-ring and metal slider with cotton fabric and polypropylene or nylon webbing. Each collar is hand made to order specifically for your pet. Washing - For best results, collars can be placed in the washer or hand washed and allow to air dry. Patterns may vary slightly from shown picture. All items are made in a smoke free home on a small family farm in GA. Part of each purchase helps a dog rescue in need. Sizing: XS - 8-12 inches Small - 10-15 inches Medium - 13-19 inches Large - 16-23 inches