[Cat Screen Door Size: Internal passage size 9.6” * 8.2” door frame size 12.4” * 9.8” suitable for small dogs and cats. An Independent Passage for Pets: This insert pet door allows your furry friends to come and go no need to open the door all day! Transform your screen door into a pet-friendly entrance. "Installation in 10 minutes: Easy to install and built to last all you need is a knife and a screwdriver. Install the door about 2 inches higher than your dogs back. Screen is not included in the package you can use the screen you cut off." Auto Close & Lockable: The magnetic flap ensures a secure closure after each use. Two blue locks on the door bottom allows you to control pet access especially useful during nighttime or when leaving home. Suitable for various screen area like sliding screen door or windows this practical addition to your home will make life easier for both you and your pets.]