【Compatibility Description】Aluminum door flap mounting kit compatible with PetSafe Freedom series dog door - fits for Freedom series large size dog door and cat door.(Note: dog door replacement flaps bracket is not compatible with PPA00-10859, PPA00-10860, or PPA00-10862 dog door flaps.) 【Material Description】Pet door top flap mount is crafted from durable, pet-friendly materials that match the original aluminum door’s quality, and the accompanying screws are made of sturdy, rust-resistant metal for secure and long-lasting installation. 【Functional Description】Dog door replacement flap bracket is specially designed to replace worn or damaged top flap mounts for PetSafe Freedom Aluminum Pet Doors, comes with matching screws for quick and easy installation. 【Easy Installation】Pet door replacement parts installation is very convenient, first, determine the correct size by counting the number of screws on the top flap mount of your existing pet door. then, remove the old and worn flap mount from the door and align the new replacement mount with the corresponding mounting holes. Finally, secure it firmly in place using the included screws.