Keep your pet safe and sound with the PetSafe Pawz Away Outdoor Pet Barrier System! With it, you can set up a barrier around your garden or pool to prevent your dog from digging or getting into off-limits areas. This pet barrier system uses a safe static correct to the lightweight receiver collar to keep your dog safely away from dangers. The Outdoor Pet Barrier System from PetSafe protects a circular area up to 16' in diameter, or you can create a custom-shaped barrier using up to 150' of boundary wire (not included). Add extra barriers to keep your pet away from additional areas. Expand the number of collars to keep more than 1 pet away from specified areas. Barriers resemble rocks that blend with the environment. Barrier use 4 D batteries (not included). Collar uses two 3V batteries (included). System includes barrier transmitter, receiver collar, test light tool, user's manual. Keep your dog from getting into areas you'd like them to avoid Set up a barrier around your garden, pool, or anywhere Protects an area from 16' in diameter You can add extra barriers or collars Barriers resemble rocks to blend in Lightweight, comfortable receiver collar