Professor Brown Browned Steel Pinch Collar with Center-Plate, Swivel and Assembly Chain (3 mm x 21 ⅗ inches) : Prong Collars, Pinch Collars, Dog Training Collars, Curogan Collars, Chain Dog Collars, Fur Saver Collars, Choke Dog Collars, Herm Sprenger Collars, Dog Muzzles