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Introduce your cat to the flap prior to the installation to allow them to become familiar with its dimensions and shape. Open the flap and let your cat explore it from every angle. Ensure the cut-out is even and square. Mark the screw holes and align them with your cat flap opening. The distance between the edges should be the same. Preparation Installing a cat-proof flap in your home is beneficial for the well-being and health of your pet. It will allow your pet to freely move from inside to the outside without needin