Let the cats in, get the dogs outOur cat door lock allows cats to freely enter and exit the room to find food, and the smaller space keeps large dogs out out the door to grab some food. Easy to InstallNo tools or glue required, no door modification required. Simply hang the pet latch on your door handle and place the pin on the door frame to complete the installation. Realize the freedom of installation and removal. High Quality MaterialThe pet door frame is made of nylon and stainless steel, which is very strong and can stop dogs, safe for babies. Small tricks, big effectEffectively deters small dogs, large dogs, crawling babies and toddlers from any room you don't want them, such as toilet, kitchen, bedroom, bedroom, etc. office, bathroom, storage room or office, the simplest and most effective containment tool. BEST CHOICE FOR PET OWNERSTry LUBERDUSH Pet Door Latch. You no longer need to put your cat in a narrow pet cage, provide your cat with a comfortable and independent space, protect the private space from large animals!