1.Cat Door with 4 Switch Modes: This cat door has four independent locking modes, which can be easily controlled with switches. You can choose to allow your cat to swing out only, go in only, go in and out ly, or fully lock the door to prevent your cat from entering or exiting. It's a convenient way to give your furry friend the dom to come and go as they please while keeping unwanted visitors out. 2.2> Applications: Outer Size 7.48" x 7.76" x 0.79"(W x H x D), Inner size:6.3" x 6.2"(W x H), Cut-Out Size: 6.3" x 6.3" (W x H), suitable for installation on doors and thin walls,suitable for cat lighter than 28 lb and waist circumference shorter than 25" 3.3>: Complete instructions are included to make installation a breeze. This cat door can be easily installed in windows, doors, cupboards, and more. 4.4> Thoughtful Design: This cat door features a transparent flap, allowing your pet to see through the door. The exterior screen is water-resistant, and a brush strip reduces noise when the door closes.