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Introduce your cat to the flap prior to the installation so that they be familiar with the size and shape. Unlock the flap and let your cat explore it from every angle. Make sure that the cutout is square and even. Mark the screw holes on your door and align them with the opening for the cat flap The distance between the edges should be equal. Preparation Installing a cat-proof flap in your home is beneficial to the health and well-being of your pet. It allows your pet to freely move from ins