4 Ways to Lock the Cat DoorOur transparent cat door has four models that can be locked with a switch, open, locked, in-only (cats can enter but not go out) and out-only (cats can go out but not enter) to control your pets' access to and from your home.Suitable for Small AnimalsDoor panel size: 7.25" x 8" x 1.2", suitable for all kinds of cats and some small dogs weighing under 6 kg/13 lbs. So, if you want to give your lovely pet more freedom, please order our pet door without hesitation.Perfect Glass DecorationThe clear design makes your window glass one-piece, best for picture windows, sliding glass doors, glass windows, suitable for all glass adjustments, pvc doors. Your pet will instantly fall in love with this stylish pet door.Durable and Weather-ResistantThe pet door is made of high-quality ABS, which is weather-resistant and durable; the sturdy UV-stabilized 100% polycarbonate structure ensures that the dog door is virtually unbreakable.Quiet and ConvenientThe cat door consists of two parts. The door brush strips prevent the door from making noise, and the silent operation won't scare your pets or disturb you.