The Petsafe Microchip Cat Flap is the perfect solution to keep your cats or small dogs safe. It also allows you to prevent other animals from entering your home during your absences or during the night. If you have several pets, you will need to use this additional key. This model can also be used as a replacement if the electronic identifier of your cat or dog is defective. Petsafe has developed this model for animals that have not yet been chipped. Thanks to its small size, it easily hangs on the cat / dog collar. Its operation does not require any battery or battery. Designed with plastic, this additional chip flap key is very durable. In addition, it has a waterproof coating. The accessory is therefore suitable for animals which are particularly active. It is good to know that a microchip cat flap can work with 20 keys. This model is compatible with the Petsafe microchip cat flap. Supplied with key ring.