Size and compatibility: fits soft boxes with 85140 cm diameter. Requires a soft light box that uses nylon buckle mounting to attach the grid. What it does: a nylon octagonal grid that shapes light for more controlled fill. Improves portrait and product lighting and creates distinct light and shadow raster effects for depth in video and photos. Easy installation: nylon buckle lining for quick setup; sewing fastening tapes on both sides help secure the grid to the inner side of the soft box. Who should use it: valuable for professional photographers and enthusiasts looking to improve lighting control with a reliable, durable accessory. Use scenarios: Portraits: tighten spill and enhance facial features with controlled fill. Product photography: emphasize texture and contours with directional light. Video work: maintain consistent lighting and reduce background spill during interviews or demonstrations.