Country Brook Design | 5/8 Inch Deluxe Dog Collar Kit Kit Contents 10 Country Brook Design top quality, 5/8 inch nickel plated steel, heavy welded D-rings 10 YKK high quality 5/8 inch plastic wide-mouth triglides (used to adjust length of the collar) 10 YKK brand 5/8 inch black heavy duty contoured side release buckles Instructions will be included with your kit