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A cat flap is a door that allows your pet to leave and enter the house whenever they want. It can be fitted into windows, doors and even walls. It opens when a cat pushes through a part of its body. Microchip cat flaps recognise your cat's unique microchip and unlock the door. Infrared and magnet flaps require that your cat wears a collar with an infrared, or magnet device to activate them. What is a cat flap? A cat flap is an opening in an opening or window that allows your pet to enter and exit the house. These fl