Four control methods: The cat door has four locking methods, open-inward, open-outward, two-way open, and locked. You can use this cat flap to control the cat's moving range at will, without having to open the door or door. Easy to install: This cat door is suitable for brick walls, metal doors, wooden doors and PVC doors. It can be installed in doors and walls with a thickness of 2 to 5 cm. A detailed installation diagram is included in the package, please follow the installation instructions. Easy to use and clean: This magnetic cat door is windproof, and the brush strip on the cat flap can clean the trash from the pet door and reduce noise. Our cat flap has three sizes and three models, you can choose the model and color according to the size of the cat. Safe and non-toxic: the pet flap is made of ABS material, safe and non-toxic, and strong and durable. The middle flap is transparent design, which is convenient to observe the situation outside the door. Suitable for small dogs and large, medium and small cats, please rest assured use. Size:M Color:White The cat flap is the perfect companion for your cat/dog! Are you still afraid of cats running around? This well-designed cat door provides a good environment for you to control your baby at will. Our cat flap is made of ABS material which is not only sturdy and durable, but also easy to install. This will take only few minutes. Get the animal control gate. The cat flap has four control methods: inside only, outside only, free entry and exit and strictly prohibited. You can move the pets inside the door according to your needs, not only. The brush on the cat flap can reduce the noise made when opening the cat flap and also can clean and prevent debris on the cat flap when entering and exiting that the cat flap gets stuck due to obstacles. This cat flap not only suitable for kittens, but also for kittens, but also for small dogs. If you plan to use them on dogs, we recommend purchasing the L (large model) to ensure the pet's waist circumference is under 23.5 feet.