https://securityholes.science/....wiki/Cat_Flap_Fittin
A cat flap on a door allows your pet to go in and out of the home without needing to open it. These doors come in different sizes to fit pets and cats. They also come with features that prevent draughts and unwanted animals. It is recommended to introduce your pet to the door prior to installing it. It will be easier to familiarize them with the size, shape and movements. Easy to install Cat flaps are found in different places. They can be installed in your garage, laundry room or bedroom to allow your pets to access your home