1:Soft Boxes, Used with Strobes and Continuous Lighting, Various 2:Sizes:400 x 400, 500 x 500, 600 x 600, 800 x 800,900 x 900mm Produces luminous, diffused light while allowing to switch between high-contrast and ultra-soft lighting in secondsUsed with strobes and continuous lightingSize: 400 x 400, 500 x 500, 600 x 600, 800 x 800 and 900 x 900mm Professional soft Box