EGETOTA Cat Door Flap Extra Large (Outer Size 11" x 9.8"), 4 Way Locking for Interior Exterior Doors, Weatherproof Pet Door for Cats Doggie Kitties & Kittens, Easy Installation4 Way Locking Mode The pet door could be adjusted by the Red and Green switches with tabs to 4 modes: out only, in only, both in and out, and fully locked, easy control of your pet's in and out. Size & Application Outer Size 9. 8" x 11" x 2. 15"(W x H X D), Inner size: 7. 9" x 8. 7"(W x H), Cut Out Size: 8. 3" x 9. 5" (W x H), suitable for installation on doors and thin walls, suitable for cat lighter than 27. 54 lb and waist circumference shorter