Fotodiox Flash-2436-Yongnuo 24 x 36 Inches Softbox with Soft Diffuser and Speedring Bracket for Yongnuo
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.