- Freedom & Convenience: Our cat door allows your cats and small dogs to enter and exit your home effortlessly and quietly. No more worrying about them feeling trapped or needing to open the door for them. - Enhanced Security with 4 Lock Modes: Easily adjust the access settings to Free In & Out, Fully Locked, Out Only, or In Only. This feature helps you control your pet's movements and prevents unwanted stray animals from entering. - No Need for Cutting: Designed with panels that are only 0.78 inches thick, this door fits perfectly into windows, wooden doors, and sliding glass doors. With an outer size of 7.7 x 7.5 inches and a flap size of 6.7 x 6.3 inches, it is suitable for cats and small dogs with a waist circumference up to 19.8 inches. - Durable and Comfortable: Constructed from sturdy ABS plastic, this cat door is built to last. The included sealing strip and magnet aligner keep bugs out and contain cat litter odors while minimizing heat loss in winter and keeping your space cool in summer. Use Scenarios: 1. Perfect for homes with multiple pets, allowing them to roam freely without needing constant human assistance. 2. Ideal for pet owners who want to prevent strays from entering their home while providing their pets with autonomy. 3. Great for apartments or homes with sliding glass doors, allowing easy access for your small pets without compromising aesthetics or functionality.