Neewer 30"x30" / 80cmX80cm Octagon Umbrella Speedlite Softbox with Bowens Mount Speedring for Nikon, Canon, Sony, Pentax, Olympus, Panasonic Lumix, Neewer Speedring Flash and Other Small Strobe Flashes 30"x30" Softbox equipped An internal & an external diffuser (both removable) for versatility in refining the hard/soft ratio of flash light Softbox is easily assembled using the softbox "skin", four flex rods and a speed ring for the flash head With Standard size Bowens speed mounts, this hiqh quality softbox fits right in any studio The large size of the softbox makes it desirable for fashion photography, portraits and medium to large sized product shots