- SIZE OPTIONS: Choose the right fit for your pet. Small door dimensions are 11.4 x 9.4 inches outside and 8.25 x 10.5 inches inside. Large door features an internal frame of 12.2 x 14 inches and an external frame of 14 x 16 x 0.5 inches. Please measure your pet and compare it to the door sizes before purchasing. - AUTOMATIC CLOSE & LOCKABLE: This dog and cat door features magnetic flap closures that ensure the door closes automatically once your pet exits, providing seamless indoor-outdoor access while maintaining security. - COMPATIBILITY WITH ALL DOORS: Equipped with two slide locks at the bottom of the flap, this door can be securely locked to prevent unsupervised pet exits. The built-in magnets automatically seal the door, ensuring it stays closed after your pet passes through. - DURABLE CONSTRUCTION: Crafted from ultra-hard ABS material, this pet door is designed for long-lasting use. It includes a sturdy inner shaft and an anti-scratch wire mesh flap, making it resilient against wear and providing safety for your pet. The charming paw design adds a playful touch to your home decor. Use Scenarios: 1. Let your pets roam freely in the yard or patio without needing to open the door constantly. 2. Perfect for homes where pets need access to a dog run or outdoor play area while ensuring the home remains secure when required. 3. Ideal for multi-pet households allowing seamless movement between indoor and outdoor spaces. This pet door combines functionality, durability, and convenience, making it an essential addition to any pet owner's home.