This is a Left Hinge/Latch Assembly for the Fast Fold Deluxe Screen from Da-Lite. It is a replacement piece that fits on the frame upright to lock screens together in order to create a wider image. It also allows the screen to be angled. Two clamps are required for screens up to 9' high and three for anything over 9'.
In the Box
Da-Lite Left Hinge/Latch Assembly for Fast Fold Deluxe Screen
Limited 1-Year Warranty Against Manufacturer's Defects