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Introduce your cat to the flap prior to installation so that they become familiar with the dimensions and shape. The flap should be opened and let your cat explore it from every angle. Ensure the cut-out is even and square. on your door and align them with the cat flap opening - the distance between the edges must be equal. Preparation Installing a cat-proof flap in your home is beneficial to the well-being and health of your pet. This is becau