For soft indirect flash light use the pure white size.For greater range and spectral highlights use the silver size.It helps to reduce hard background shadows and eliminates the annoying red eye effect.Note:This goods is one reflector with two sides(white/silver), not two reflectors. One Reflector Only.Color: Black silverMaterial: metalSize: 20x18.5x0.5CMSuitable for: SB-800, SB-600, SB-80DX, SB28, SB26, SB25, SB24 580EX, 550EX, 540EZ, 430EX, 420EX, 380EX, 430EZMetz 40MZ2, 54MZ3Minolta 5600hs, 5400xi/hx, 5200i, 3600 FL-40, FL-50, G40 HVL-F1000, HVL-F32X EF-500DG Super, ST 360TW, 360TXP, PZ400-C-N-MSunpak 2000DZ, 266D, MZ440AF 988 2500, 273, 3500, 850AFPackage Contents:1 x Silver/White Flash DiffuserOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.