The cat training accessoryPetsafe Staywell magnetic cat flap extra collar is designed for you if you have more than one cat at home or if you have lost the collar. If you have bought a new companion and you only have to buy a new collar if you already have a magnetic cat flap, the Petsafe's Staywell Additional Collar for magnetic cat flap is there to fill your need.
Additional collar, magnetic cat flap, PetSafe Cat Staywell PPA00-11324. Useful when you have several cats at home. Adjustable collar from 16 to 27cm or 6" to 10".