PetSafe KeepSafe Break-Away Collar, Prevent Collar Accidents for Your Dog or Puppy, Improve Safety, Compatible with Lead Use, Adjustable SizesPROTECT YOUR PET: The KeepSafe Break Away Collar is the only collar with a patented buckle specially designed for quick release to help prevent tragic collar accidents STURDY, REUSABLE BUCKLE: The unique break away buckle design separates when pressure is applied if the collar becomes caught or snagged; it easily snaps back together so it can be used again and again. A separate traditional snap buckle allows the collar to be put on and taken off