Opteka SB-160 16x16" Collapsible Speedlight Studio Softbox with Tripod Mount L-Bracket for Canon EOS Speedlite 320EX, 430EX II, 580EX II, 600EX-RT, Nikon Speedlight SB-700, SB-800, SB-900, SB-910 AF, Olympus FL-50R, Sigma EF-610 DG ST & Super External Shoe Mount Flash Units Provides soft, even flash illumination 16 x 16" front diffuser screen Silver reflector interior Folds down flat for easy storage and portability