Opteka SB-20 XL Universal Studio Soft Box Flash Diffuser for External Flash Units (14" X 9.4" Screen) Provides soft, even flash illumination One size fits all. Attaches to most external flashes with the included Opteka CL-2 clinch band Folds down flat for easy storage and portability Dimensions: 14" X 9.4" (WXH) 1 Year Opteka Warranty