Pet Door Cat Door Pet Gate Frame Dog and Gate Cat Flap Door Dog Pet Lock Frame Lockable Cat Door

4 locking modes: The pet door can be adjusted to 4 modes through the red and blue switches-only for going out, in and out, all locked. Allow you to easily control your pet's entry and exit outside the house. explain: 1. Material: ABS. 2. Colors: white, brown. 3. Size: 20cm 19.2cm 1.5cm. M: 20cm 19.2cm 5cm. L: 25cm 23.5cm 5.5cm. XL: 29cm 25cm 5.5cm. Easy Installation Comes with instructions not necessarily in Chinese), just a few steps to install the cat door on indoor doors, outdoor doors, windows, walls, etc. Only includes 1-inch screws, if you need to install on thinner doors, you will need to purchase shorter screws yourself. Just screw in 2 corners on each side, no need for 4 screws on each side. Practical design: Transparent flip cover allows pets to see from the door. The exterior of the puppy door is equipped with a waterproof seal to prevent rainwater from seeping into the wooden door and corroding it. Brushing can eliminate the noise of the door closing. High quality: The dog