- FREEDOM AND COMFORT: This large cat door enables easy and quiet access for your cats or small dogs. They can come and go as they please, eliminating the need for you to open or close the door for them. - SAFER WITH 4-LOCK MODES: Customize your pet's access with four adjustable modes: Free In, Out, Full Locked, Out Only, and In Only. This feature allows you to control your pet's movements and helps keep stray animals at bay. - NO TUNNEL REQUIRED: The door panels are only 2 cm thick, making installation simple without the need for cutting. It's compatible with windows, screen doors, and sliding glass doors. The dimensions include an outer size of 19.7 x 19 cm and a flap size of 17 x 16 cm, suitable for cats and small dogs with a waist circumference of less than 50 cm. - DURABLE AND COMFORTABLE: Constructed from robust ABS plastic, this cat door is designed for long-lasting use. It features sealing strips and a magnetic alignment system to keep bugs out and minimize odors from litter. Additionally, it helps maintain consistent indoor temperatures by reducing cold air loss in summer and heat loss in winter. Use Scenarios: 1. Ideal for households with multiple pets, allowing them to move freely without constant supervision. 2. Perfect for pet owners who want to prevent stray animals from entering their home while giving their pets the freedom to explore the outdoors safely. 3. A practical solution for apartments or homes with sliding doors, ensuring easy installation and efficient use of space.