Dog Flap Cat Flap Fly Screen Door, 4 Way Locking Pet Flap Fly Screen for Small Dogs and Cats with Girth Practical Cat Door： This lightweight pet screen door, dog door with magnetic buckle can automatically close the door when your dog leaves. It allows you to install unique doors on indoor or outdoor walls, external dimensions small cat door: outer dimension width 24 x thickness 1.5 x height 29cm, inner dimension width 19 x thickness 1.1 x height 24cm Large cat door: Outer dimension width 37 x thickness 1.8 x height 43cm, inner dimension width 31 x thickness 1.4 x height 37cm, suitable for medium to large dogs, cats or other pets. High Quality and Durable： The pet flip door frame is made of high quality material and durable, the flip cover allows pets to see clearly through the door. screen door. It keeps flies, mosquitoes and other insects out of the house. 4 Switch Models： Four independent models, lock the cat flap door with a switch. Only swing out, in and out, fully locked, easy to control the in and out of pets. Easy installation： The dog door is easy to install. It can be installed directly on existing doors, windows or porch screens for quick and easy installation and blends seamlessly with existing screens. Just tighten it to keep it from falling off. Works with all doors, windows, panels or any other screen area. Easy to train： The transparent flip cover allows your cat to see his food or litter box on the other side of the door, making training and adaptation stress-free. Additionally, the flap is wrapped with a brush strip to reduce noise and power from the cat's push. Dog flap cat flap flying screen door 4 WAY SWITCH MODES: The pet door can be adjusted to 4 modes by the tab switch on the flip cover: exit only, input only, input and output and fully locked, easy to control pet input and exit. Super hard ABS material and screws hold the screen door securely in place. High-quality nylon mesh prevents pets from scratching their paws. Pet gate designed for small dogs and cats. update slide lock Pet door has 4 sliding locks, more secure than two And it's great for protecting your pets when you're not home. Magnetic flap closure The dog/cat screen door has built-in magnets that automatically close when your dog walks. You can even lock the door to prevent your pet from going out at night or when you're not home. Select the area where you want to install the pet gate and mark the screw points. Original decoration. Secure the pet door with screws. Includes full instructions for easy installation on screen doors, panels and patios or other screen areas etc.