Our top seller is the ZigZag screen, perfect for bi-fold doors with large openings. It has an attractive, durable mesh screen and glides open with the touch of a finger. What sets it apart is the ability to open it from either end, perfect when you have a swing door at both ends of your door system. This amazing screen can be easily added after your door system has been installed and has an unobtrusive bottom track at only ¼” high.