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Introduce your cat to the flap prior to installation to allow them to become familiar with its size and shape. Open the flap and let your cat explore it from every angle. Make sure the cutout is even and square. Mark the screw holes on the door and align them with the opening of the cat flap - the distance between the edges must be the same. Preparation A cat flap in your home is beneficial to the health and wellbeing of your pet. This is because it allows them to move freely between indoors and outside with