The speedring is specifically designed to fit both rectangular and octagon standard softboxes from Fotodiox. This speedring has an outer diameter of 7-5/8" (19mm) and fits 1/4" (6mm-7mm) standard rods. 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.
|Product||Speedring Plate & Speedring Insert for Select Strobes|
|Plate Outer Diameter||7-3/4" (19.7cm)|
|Plate Inner Diameter||6" (15.2cm)|
|Rod Diameter||1/4" (6mm)|
|Insert Outer Diameter||5-7/8" (14.9cm)|