Neewer 16"/40cm Round Flash Diffuser Softbox with 18% Grey Balance Card for Canon 430EX II,580EX II,600EX-RT,Nikon SB600 SB800 SB900 380EX,Neewer TT560,TT680,Yongnuo YN560,YN565 Speedlight Folds up small size to be carried anywhere you go.By diffusing the flash, the softbox creates an even lighting that allows you to capture picture-perfect shots Grey card on back will provide a standard reference object for exposure determination in photography.In addition to providing a means for measuring exposure, a gray card provides a convenient reference for white balance, or color balance, allowing the camera to compensate for the illuminant color in a scene Compatible with all Canon 430EX II,580EX II,600EX-RT,Nikon SB600 SB800 SB900 380EX 430EX,,Neewer TT560,TT680,TT850,TT860,Yongnuo YN560,YN565,YN568 speedlight and other external flashes Slim design makes it easy to hand-hold or use with a light stand.The softbox uses fastening tape strip to connect speedlight Great for product photography,portraits,studio work,and event photography like wedding.Note: Camera and speedlight are NOT included