Cat flap in good working order, now superseded so looking for a new home. It is operated by a small magnet that attaches to your cat's collar, and several magnets are included, so you can equip several cats to use the cat-flap, or just have a stock for one cat (they do go through them if they are good at losing their collars, as most cats are). It does NOT need a battery. It can be locked to stop cats coming in, or going out, or both. It will keep out any cat that doesn't have the right magnet. Includes all the fittings and suitable for any door (wooden or composite) up to 2 inches thick. Unlikely to work for a metal or glass door (such glass should be toughened, and difficult to cut a hole).
Available to pick up near Haymarket, and I can leave it just inside the outer front door if I know when you will call. Or I might be able to deliver (by prior arrangement) to anywhere on or near my route into & out of Edinburgh, so from the Forth Bridges, via Barnton Junction and Queensferry Road to Haymarket