Pink Seahorses Dog Collar. Add some fun to your pup's neck! These collars are made in the USA with durable nylon webbing and nickel-plated D-rings for easy leash attachment. Collars are easily adjustable ensuring a perfect fit. Don't forget the matching leash! Sizing:XS: 10-15 in. L x 3/4 in. WS: 11-18 in. L x 3/4 in. WM: 12-20 in. L x 1 1/4 in. WL: 15-24 in. L x 1 1/4 in. W