PlexiDor Performance Pet Doors 19.25 in. x 1.375 in. Large Silver Sliding Track with Flip Lock for Pet Door

Whether you leave your home for an extended period or want added security every day, the PlexiDor Sliding Track accessory makes it easy. Simply attach the left and right tracks to the interior frame and slide the steel security plate into place. Secure the plate with the handy flip lock feature and you're finished. Tracks are made of strong, durable aluminum and match the frame color of the door. Hardware attached, installs in minutes.