Product introduction: Specifications: Color: white Material: plastic Product size: 20 x 19 cm Features:; 1. Renew the wiper blade: provide a fixing groove with buckle to make the wiper blade firmly fixed. Even if the brush strip falls off, it can be easily repositioned in the installation slot. This greatly helps the brush to reduce noise and to prevent rain drops, wind or mosquitoes and other pests as much as possible. 2. Know well: animals can see through the transparent shutter through the door. Outdoor gutter inlet is waterproof. When the door is closed, the brush tape can eliminate the noise. 4-way intelligent door control provides more freedom for chat rooms. The inner edge of the frame is polished to prevent the cat from being injured. 3. 4-way switching mode: four modes can be customized for the flap door: out, in, in, out, and full lock. Give the cat the freedom he wants. >; 4. High quality: It is made of weather resistant ABS material, with smooth and durable