For soft indirect flash light use the pure white size.
For greater range and 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:
SB-800, SB-600, SB-80DX, SB28, SB26, SB25, SB24
580EX, 550EX, 540EZ, 430EX, 420EX, 380EX, 430EZ
40MZ2, 54MZ3
5600hs, 5400xi/, 5200i, 3600
FL-40, FL-50, G40
HVL-F1000, HVL-F32X
EF-500DG Super,
360TW, 360TXP, PZ400-C-N-M
Sunpak 2000DZ, 266D, MZ440AF
988
2500, 273, 3500, 850AF

Package Contents:
3 x Silver/White Flash Diffuser