These replacement parts are designed specifically for use with the following PetSafe and SportDOG fence collars PetSafe Deluxe Ultralight Dog Fence Collar. SportDog Underground Dog Fence Collar. PetSafe Stubborn Dog Fence Collar. PetSafe Ultralight Pet Fence Collar. PetSafe Instant Fence Wireless Dog Fence Collar. PetSafe Underground Cat Fence. Repair or Replace your pets collar. Need replacement contacts, washers or cover screws for your PetSafeSportDOG fence collar Repair your dogs in-ground or wireless fence collar with this PetSafe RFA-281 Accessory Pack Universal Kit.