CEESC Pet Door for Cats & Doggie (Outer Size 11" x 9.8"), 4 Way Locking Extra Large Cat Door for Interior Exterior Doors, Weatherproof Cat Flap Door for Pet with Circumference < 24.8"4 WAY SWITCH 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 and doggie lighter than 27. 54 lb and waist circumference