Nautical Code Flags Dog Collar. Let everyone know who your first mate is with this collar! This collar is made with durable nylon webbing and features side release buckles and nickel plated D-ring. Made in the USA. Don't forget the matching leash! Sizing: <b>7_10</b>: 7-10 in. L x 1/2 in. W <b>10_15</b>: 10-15 in. L x 3/4 in. W <b>12_20</b>: 12-20 in. L x 1.25 in. W <b>15_24</b>: 15-24 in. L x 1.25 in. W