Outer dimensions: 25 cm x 24 cm x 4.5 cm; inner dimensions: 15.5 cm x 15 cm. Cat door material: Made of durable ABS with a rigid, clear plastic flap. Sturdy screws help ensure a reliable, long-lasting installation. 4 Way Magnetic Closure System: Modes include Only, Only Off, Free On/Off, and Closed (If Required). The magnetic automatic closure makes it easy to control your pet's access to certain areas. Practical design: Waterproof and tightly sealed to minimize energy loss. A brush strip reduces noise when the door closes. Draft-free weatherproof seals help maintain room temperature. Use scenarios - In a multi-pet home, allow your cat to move freely between rooms or outdoors while restricting access for other pets. - Use in bedrooms, kitchens, or restricted areas to provide controlled cat access as needed. - In drafty or energy-conscious spaces, the weatherproof seals help reduce drafts and keep rooms warmer.