Fotodiox Flash-3248-Ca 32-Inchx48-Inch Softbox with Soft Diffuser and Speedring Bracket for Canon Flash Speedlite
The Fotodiox Pro dedicated Flash speedring is specifically designed for your speedlight/flash with standard hot shoe mount to fit standard softboxes both rectangular and octagon boxes. It has a outer diameter of 7 5/8", fits 1/4" standard rods. The softbox is designed for using speedlight/flash as replacement of traditional strobe for both studio and location photography.