Neewer Flash Bounce Light Diffuser Dome for Nikon SB900,Neewer NW680,NW685,TT850,TT860,NW580/VK750,NW670/VK750 II,NW690/MK950II NW910/MK910,MK900,MK600 Flash Speedlight Store on the flash unit for travel-- no need to take up extra space in your gear bag! Fits Nikon SB-900 Flash unit Cap Diffuser softens light from flash, eliminating harsh shadows Perfect for portraits, weddings, etc! L: 9.0cm W: 6.2cm H: 4.8cm