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 silver Material: metal Size: 20x18.5x0.5CM Suitable for: Nikon SB-800, SB-600, SB-80DX, SB28, SB26, SB25, SB24 Canon 580EX, 550EX, 540EZ, 430EX, 420EX, 380EX, 430EZ Metz 40MZ2, 54MZ3 Minolta 5600hs, 5400xi/hx, 5200i, 3600 Olympus FL-40, FL-50, G40 Sony HVL-F1000, HVL-F32X Sigma EF-500DG Super, ST Nissin 360TW, 360TXP, PZ400-C-N-M Sunpak 2000DZ, 266D, MZ440AF Tumax 988 Vivitar 2500, 273, 3500, 850AF Package Contents: 1 x Silver/White Flash Diffuser Only the above package content, other products are not included. Note: Light shooting 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.