JYC Professional Lambency Flash Diffuser / Flashbounce / Diffusor for Canon Speedlite 550EX / 580EX /580EX II or similar, Sony F58 / DI866, Nikon SB900 - Mod. P4 (US) High quality material, colour corrected. Fits Canon Speedlite 550EX / 580EX /580EX II or similar, Sony F58 / DI866, Nikon SB900, Yongnuo YN560, YN560-II, YN565EX, YN565EXC, YN565EXN or similar A bestseller worldwide!