The speedring insert is a replacement part for Pro Studio Solution EZ-Pro Softboxes, Fotodiox Beauty Dishes or Fotodiox Pro Softboxes (with an existing speedring plate). By replacing the insert with a different model, you can mount the softbox on almost any strobe, allowing you to expand your lighting options or use the same softboxes for multiple setups.

Compatible Strobes:
Speedlight Hot Shoe Flashes
Nikon, Canon, Pentax,
Olympus, Vivitar, Metz,
Nissin, Yongnuo, etc