Compatible with Closer Pets Pet Mate Petmate Cat Tiny Microchip RFID Collar Tags Disc Key Replacement 310 for 305 306 Selective Flaps

These ID tags work with closer pets catmate petmate cat flaps. Diameter: 25 mm EXCLUSIVE ENTRY - Prevents curious and unwanted pets from entering your home, the Microchip keychain unlocks the smart cat flap so it's ready to be opened by your cats only. MULTI-PET HOUSES - Ideal for homes with multiple cats, the smart cat flap can be used with many key rings to ensure only your cats come in NO MICROCHIP - Felines with incompatible fleas can still enjoy an exclusive entrance into your home Independence: with the unique chip cat flap for your pets, the keychain gives your cats the freedom and independence to go and go as they want, without constant supervision from their owner CAT RESISTANT - The durable and tough design of the Microchip keychain can withstand even the most active cats, as the lightweight, waterproof design makes it virtually cat resistant