PetSafe Nylon Dog Collar Deep Purple 1In X 14-20 in, Large

This martingale-style dog collar keeps your dog safer than ever. Martingale collars are safer than choke chains or prong collars. Used with a leash or with your hand, the martingale collar tightens when your dog pulls and loosens when he stops, so it’s only tight when it needs to be. These collars give you greater control and reduce the risk of your dog slipping out and escaping.