Four Control Methods: The cat flap has four locking methods, inward-opening, outward-opening, two-way opening, and locking. You can feel and lock. You can feel and lock. You can feel and lock. With this, there will be no need to open the door or the door. Easy to install: This pet door is suitable for brick walls, metal doors, wooden doors and doors in PVC. A detailed installation diagram is included in the package, please follow the installation instructions. Easy to use and clean: This magnetic cat flap is windproof, and the brush on the cat flap can clean up trash on the pet door and reduce noise. And the color according to the size of the cat. Safe and non-toxic: The pet flap is made of ABS material, which is safe and non-toxic, sturdy and durable. Suitable for small dogs and large, medium and small cats, please rest assured to use.