This product must be recessed into the wall to allow dogs access to the house. This product must be recessed into the wall to allow dogs to access the house. The built-in magnet can absorb in the normal state, and the baffle will not shake. The door plate is removable. Insert the partition plate when the dog is not allowed to go in or out. The built-in magnet can absorb in the normal state, and the baffle will not shake. The door can easily be installed and detached with several screws, and it is convenient to use. It is large enough for large and medium-sized pets. Size Outer Size: 50cm38cm Inner Size: 41.6cm32.8cm