4-way lockable pet door for cats and small dogs. The door can be set to four modes: unlocked (full in-and-out access), in-only, out-only, or locked. This gives your cat or small dog the freedom to come and go without disturbing you or being locked at night. It can also be installed on interior doors to give your cat access to a bedroom or a litter box cabinet. More freedom and comfort: the brush strip reduces energy loss and provides quiet, smooth operation. When locked, wind and snow stay outside, and the waterproof, dense construction helps keep your indoor environment comfortable. You will feel freer at home. Easy to install: full installation instructions included (may not be in English). Suitable for windows, doors, cabinets, panels and walls. Odor control: keeps litter odors contained without locking your cat in or out. The cat still has access to food and bathroom, helping your home stay fresh. Use scenarios - Install on an interior door to give your cat access to a bedroom or a dedicated litter box cabinet. - Use on a main door to allow in-and-out access while you control entry points. - Mount on a cabinet or wall panel to create a convenient access point for food and bathroom needs without restricting movement.