Foto&tech Silver/White Two Sided Flash Diffuser Reflector for Speedlight Nikon SB-900, SB-800, SB-910,Canon 580EX II, 600EX-RT,430EX II, Pentax AF-360FGZII, Olympus FL-600R, Panasonic DMW-FL360L For soft indirect flash light use the pure white side; For greater range and spectral highlights use the silver side It helps to reduce hard background shadows and eliminates the annoying red eye effect Easily slipped on the top of the external flash unit using its elastic strap Accommodates various size flashes, fits in many camera bags Dimension(cm): 20 CM (L) x 18.5 CM (W) x 10.5 CM (H)