PetSafe In-Ground Deluxe Ultralight Collar with Radio Receiver, PUL-275 Plus 1 Free Disposable Dog Poop Bag &hellip; Extra collar with receiver for use with PetSafe In-Ground Fence Collar is only compatible with PetSafe brand Systems Adjustable, ultra-light collar for optimal comfort; weighs 1-1/2 ounces 4 levels of electric correction and a beep-only warning mode Includes collar, short probes, receiver, and PetSafe RFA-67 battery module and Free Dog Poop Bag Roll