4-Way Access ControlInward open, outward open, both directions open, locked. Use the cat flap to allow cats to come and go as they please, or to keep them safe in or out of the house when needed. Free your hands, stop playing as a cat door opener!Easy InstallationThis pet door can be installed in doors and walls with a thickness of 2-6cm, ideal for brick wall, wooden door, PVC door, and metal door. Made of robust ABS plastic, suitable for interior and exterior doors, weather-resistant and easy to clean.Quiet---Self-closing---Windproof 1:) This free swing door is extremely silent for the brush bar seal. 2 :) Magnetic closure ensures that the cat flap is returned to its original position after actuation. 3:) Windproof and protects against drafts. So that you don't freeze in winter or in stormy autumn.Swinging Flap DesignThe clear flap is made of high-strength fiberglass, which protects against UV rays, has good transparency, and protects against pet grasping and biting. With this cat flap, you enable your four-legged friend to explore the garden independently.