Lesypet Magnetic Dog Door Automatic Lock Pet Window Screen Flap Door Cat Door Cat Flaps With Magnetic Catdoor Small: 6.4W x 6.4H" (Inner); 8W x 8H" (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