- Replacement magnetic plate to be applied to your cat's collar.
- Compatible with the Swing 7 pet door
- It unlocks the door when the your cat is approaching, while preventing other unknown animals from entering
KIT 420 is a replacement magnetic plate for your cat's collar, which allows him to enter his door while preventing other cats or any other undesired animals from entering your home: in fact, the door will only open when your cat approaches it. The KIT 420 magnetic plate is compatible with the Swing 7 pet door for cats.