Cat Mate Electromagnetic Cat Flap £32.99
A magnetic 4 way lock cat flap. Stray cats can often be a big problem but this magnetic cat flap provides a reliable solution. Your cat wears a small magnet on its collar that doubles as an identification tag allowing it to enter the flap. Ideal for all doors except glass. Overall Size 7 5/8in x 9 1/2in (195mm x 242mm) cut out size 6 5/8in x 8 5/8in (168mm x 219mm). Easy fitting to doors of all thickness and hollow doors to 2.25'' approx. 9 volt battery required, not supplied.LED no longer on this design.