PetSafe PetSafe Nylon Martingale Dog Collar

The PetSafe Nylon Martingale Dog Collar is paw-fect for escape artists and dogs with necks that are larger than their heads. When you use it with a leash (sold separately) or your hand, the collar only tightens when your pup pulls, then loosens when he stops. It gives you more control and reduces the risk of your dog slipping out and escaping. The design won’t cause matting and bald spots like some standard collars will.