Fotodiox Pro Studio Solutions Flash-S-Insert for Ez-Pro Softbox for Nikon, Canon, Pentax, Olympus, Vivitar, Metz, Nissin and Yongnuo Flash, Speedlite
The speedring insert is a replacement part for the Pro Studio Solution EZ-Pro Softbox. By replacing the insert, you can mount the softbox with any speedlight / flash with a hot shoe mount. It is perfect for location photographer that needs a full size softbox set-up.