Fotodiox 10SPRPHG Speedring for Photogenic Studio Max III 160, 320, Powerlight PL1250, PL1250DR, PL1200DRUV, PL2500DRUV, PL625DR, PL624DRC, PL1250DRC, Solair 500, 1000 Strobe Flash Light and Speed Ring
The Fotodiox dedicated speedring is specifically designed for your strobe light to fit standard softboxes both rectangular and octagon boxes. It has a outer diameter of 7 5/8" (19mm), fits 1/4" (6mm-7mm) standard rods. It fits all Photogenic Strobe.