For added protection, the centre flap is fully insulated. The metal frame has reinforced aluminium corners and is built to handle active and multi-pet households. Use the slide-in closing panel to control your pet’s access outside and keep stray animals out of your home. The door easily fits into panelled, wood, PVC and metal doors 3.75–5 cm thick and installation is a DIY project. Choose from 3 sizes for pets weighing up to 100 kilograms. PetSafe® brand is here to help you and your pet to live happy together™.