Aggression Buster Curogan Pinch Collar with Center-Plate and Click Lock Buckle (4 mm x 23 3/5 inches) : Prong Collars, Pinch Collars, Dog Training Collars, Curogan Collars, Chain Dog Collars, Fur Saver Collars, Choke Dog Collars, Herm Sprenger Collars, Dog Muzzles