Compatible with PetSafe Doors : Dog door replacement flaps Measures 10 1/8"(Width) x 16 7/8"(Height), FIVE Screw holes at the top of the Flap for adjustment, and it also can be use as cat door flap replacement Weatherproof and Durable：Pet door replacement flap are made of flexible and durable materials with a weatherproof design that ensures long-lasting, weatherproof use，effective protection against severe weather Easy Installation: Doggie door replacement flaps includes replacement stops and screws. Installation is quick and easy and requires only a screwdriver Screw-On Door Flap With Magnetic Closure：MIAOTONG Dog door flap is equipped with a magnetic strip design at the bottom to ensure a tight fit, and is securely attached by magnetic force to effectively isolate the outside world and reliably prevent mosquitoes from invading After-Sales Service : We want to make sure you are completely satisfied with replacement dog door flap. If you have any questions or concerns, contact us and we will be happy to help you pet door with our Dog Door Replacement Flaps