Outdoor Dog Supply 1" Wide Solid Color Ring in Center Dog Collar Strap Custom Brass Name Plate (21" Long, Burgundy) Poly-coated nylon that is water and odor resistant 19 fits 12 - 19 necks; 21 fits 14 - 21 necks Tight hole spacing for a better fit on your dog D Ring and Center Ring Style; Nickel plated fittings