LESYPET Magnetic Dog Door Automatic Lock Pet Window Screen Flap Door with Magnetic - L Dogdoor Large: 12W x 16H" (Inner); 14.1W x 18.1H" (Outer) Great for all pets cats or dogs Magnetic dog door,includes two magnets, self-closing pet screen door Designed for screen windows or doors and any other screened areas to allow in/out access for your pet Simple installation, come with English installation instructions