The interior cat door offers your cat convenient access to their essentials, like food, water, and the litter box, even when your main door is closed. - 4-Way Locking Mechanism : Easily control your cat's movement with four locking options: in-and-out, only inside, only outside, or fully locked. The simple rotating knob makes adjustments quick and easy, ensuring your pet can enter or exit as needed. - Versatile Application : Suitable for both interior and exterior use, this cat door fits snugly in various types of doors, including wood, PVC, and metal, with a thickness of 1/2 to 2 inches. Outer dimensions are 10.03" x 2.36" x 11.81" (D x W x H), while the inner dimensions are 7.87" x 8.66" (D x H), accommodating cats weighing up to 25 pounds. - Easy Installation : The cat door comes with a full-size cutting template, simplifying the installation process. It can be mounted in a variety of locations, including cupboards, garages, laundry rooms, closets, utility rooms, bedrooms, bathrooms, and litter box cabinets. - Durable and Weather-Resistant : Constructed from sturdy ABS plastic, with a high-strength acrylic flap, this cat door is built to last. The fully brush-sealed design features magnetic closures that ensure complete weatherproofing, reducing energy loss, minimizing noise, and keeping pests and litter odors at bay. This cat door enhances your home by providing your feline friend with the independence they desire while maintaining your peace of mind.