Designed with heavy-duty nylon, Flex Cine Softbox Egg Crate Grids are a fast and reliable way to gain precise directional control of Flex Led mats when paired with Flex Cine Softboxes. This 1' x 2' 40-degree grid helps contain light spill and narrow the beam angle for your Flex lighting system. It quickly mounts and dismounts via hook-and-loop fastener onto the Flex Cine Softbox's recessed edge..