The Westcott 40-Degree Egg Crate Grid allows photographers and filmmakers for precise light control with limited loss of light. It is designed with increased depth for greater performance. This 40-Degree Egg Crate Grid is made up of cells that control off-axis light in four directions while still maintaining the soft quality you want from a large light source. By focusing light through a grid, you eliminate both light spill and lens flare simultaneously. The Westcott 40-Degree Egg Crate Grid is designed for use with Rapid Box Octa XXL and Switch Octa-L.