Please note: This product might take a little longer to arrive as it may be shipped from outside the UK. The Cat Mate Glass Fitting Cat Flap - 4 Way Lock has a round design and can be fitted into single- or double-glazing up to 3cm. The transparent 4-way locking cat flap makes barely any noise when it opens or closes, and is tamper-proof. Thanks to the thickness and magnetic closure, it also helps to protect against draughts. Cats are stubborn creatures and like to decide for themselves when and where they go. As your cat cannot open the door itself, a cat flap such as the Cat Mate Glass Fitting Cat Flap - 4 Way Lock is an ideal practical solution to allow your cat to independently come in and out. The Cat Mate Glass Fitting Cat Flap - 4 Way Lock fits in both single and double glazing, with an extra pane of glass needed for safety glass and multiple glazing. The Cat Mate Glass Fitting Cat Flap - 4 Way Lock is transparent and has a round design, fitting into any glass surface depth up t