CEESC Large Cat Flap (Outer Size 11" x 9.8"), 4 Way Locking Door for Interior Exterior Doors, Weatherproof Pet Cats & Doggie with Circumference < 24.8" (White)

4 Way Switching Mode: The pet door can be adjusted by the red and green switches with tabs in 4 modes: only out, only in, both in and out, and fully locked, easy control of your pet's entry and exit. Dimensions and application: External dimensions: 25 x 28 x 5.5 cm (W x H x D) Internal dimensions: 20 x 22 cm (W x H). Cutting size: 21 x 24.2 cm (W x H), suitable for installation on doors and thin walls, suitable for dogs and cats lighter than 12.5 cm. kg and waist circumference shorter than 63 cm SAFE AND THOUGHTFUL - The transparent flap allows the pet to see through the door. The outer rain seal is waterproof. Brush strip eliminates noise from door closing. EASY TO INSTALL - Full instructions included allow you to easily install windows, doors, cabinets, panels and walls, etc. Excellent quality: Made of ABS material, weather resistant, the surface is smooth and durable.