Features: Great Fit For Door: Flap only. Features 4 holes at the top of the flap for perfect alignment. Quick and Easy Installation: Installs in just minutes with a screwdriver. Simple and convenient, making it easy to replace an old pet door. High-Quality Material: This replacement flap is compatible with cat doors and dog doors, made from flexible, durable, weather-resistant TPU material. Weather Tight and Weather Resistant: Magnetic strip at the bottom of the flap securely connects to the magnetic interface at the base of your pet door to help keep outside elements from entering. Compatible with Many Doors: Available in two sizes. Medium measures approximately 32.2 x 20.5 cm; Large measures approximately 43 x 26 cm. Specifications: Material: TPU Color: As shown in pictures Size (Approx): M: 32.2 x 20.5 cm L: 43 x 26 cm (16.93 x 10.24 in) Weight (Approx): M: 225 g L: 430 g Note: 1. Please allow 0–1 cm error due to manual measurement. Ensure you are comfortable with this before purchasing. 2. Due to differences in monitor displays, the actual color may vary slightly from the image. Package Includes: 1 x Dog Door Flap Replacement (Medium or Large)