This is a 40°, nylon Fabric Grid for the ARRI small (24 x 32") softbox.
Grids are essential accessories for any lighting system. A grid alters the shape and intensity of the light output from your softbox when it is mounted on a light head. Consider a grid as a painter would a brush or a sculptor would a knife or chisel.
Fabric grids are hand-stitched and collapse easily for storage or transport. Use of a fabric grid will result in a narrower spread of light. The spread of light will be determined by the density of the honeycomb mesh and the distance of the subject from the light.