Remember to measure your pet for the paw-fect fit. Give your canine a comfier collar! The PetSafe Martingale Dog Collar with Quick-Snap Buckle is safer and more comfortable than prong collars. The durable, nylon, martingale collar tightens when your dog pulls and loosens when he stops—so it’s only tight when it needs to be. This gives you greater control during walks, while reducing the risk of your pup slipping out of his collar. Plus, the quick-snap buckle makes putting the collar on and taking it off a snap.