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Introduce your cat to the flap prior to when it's set up so they can be familiar with the size and shape. Open the flap and let them explore it from every angle. Make sure the cut-out is level and ensure that the cut-out 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 must be the same. Preparation A cat flap in your home can be beneficial for the health and wellbeing of your pet. This is because it will allow them to freely move between indoors and outside withou