...with this pet door your cat or very small dog (under 35cm to the shoulder at adult height) wears a magnet on it's normal collar or flea collar ( collar NOT included ) flap will only unlock for cat wearing a magnet!
Any animal can get out – no magnet required – so if cats get in another door etc they can escape without ripping your house to shreds!
The pet door has a turn dial locking system also so you can lock it completely or have your cat get in/not back out or out/not back in if you wish to use it.
Available in white or brown frame.

 *   For cats or very small dogs (under 35cm to shoulder at adult height)
 *   Overall size of 245mm x 190mm
 *   Cut out size of 228mm x 173mm
 *   Self lining/suitable for installation into thickness of between 15mm to 60mm  
 *   Wood fitting...hole cut out = 219mm x 168mm and the pet door has an overall size ( incl. frame etc ) of 242mm x 195mm ...self lining-up to 60mm thick
 *   Flap size of 170mm x 150mm
 *   white/brown body, transparent/tinted flap 
 *   magnet to stop it opening in the wind/fur strip to stop draughts 
 *   easy to use 4-way lock dial on the inside of door 
 *   2 lighweight barrel style collar magnets supplied
 *   3-year warranty 
 *   a great, sturdy, reliable door... replacement collar magnets available in our ‘spare parts’