- Versatile Locking Options : Choose from four locking methods: inward, outward, bi-directional opening, and locking. This allows your pets to come and go freely without needing to open the door, enhancing their independence while making your life easier. - Easy Installation : Designed to fit doors and walls between 2-6 centimeters thick, this pet door is compatible with brick, metal, wooden, and PVC surfaces. Includes detailed installation instructions to help you set it up quickly and efficiently. - Pet Door Dimensions : Frame size is 20 x 19 cm (Width x Height), with an interior door opening of 16 x 15.7 cm (Width x Height) and a thickness of 2 cm. This size is suitable for most cats and small dogs. - Quiet Operation : Equipped with special seals and magnetic locks, this door provides a silent opening and closing experience. Edge brush strips minimize noise and ensure optimal wind protection. - Practical Applications : Ideal for homes with multiple pets, allowing them to access their outdoor space anytime. Perfect for pet owners who want to maintain a peaceful environment while giving their pets freedom. Also great for busy households, where easy access for pets can reduce stress and chaos. This pet door combines functionality and convenience, making it an essential addition for any pet owner.