MILITARY GRADE SECURITY - Fortify your home with our Plexidor pet door's security steel plate, easily slide in with a high quality aluminum track with a fool proof flip lock for high security. SET UP IN MINUTES - Say goodbye to contractor headaches! PlexiDor's sliding tracks attach easily to your internal structure with a simple screw driver. For pet lovers, a DIY set up in minutes. HIGH QUALITY - The PlexiDor boasts a rock solid aluminum construction that weathers the elements and happy hoppers with ease, ensuring your investment last longer than flimsy competitors. NO MORE THIN SHEETS - Annual flap replacement required by competitors. Plexidor's high quality aluminum and secure lock deter even the most unwanted guest, giving you the ultimate peace of mind. AMERICAN MADE - PlexiDor is an American made sliding track that is built to last and crafted with top of the line construction. Elevate the freedom of your pet and your home's comfort.