RPS Studio soft box 24x24 inches.  NO MOUNTING RING
For use only with electronic flash systems.
Mounting ring for your brand of flash system available from other vendors
Rings available to fit:
Norman, Novatron, Profoto, Balcar, Universal, Bowens, Elichrom, and Photogenic
These are available direct from Dot Line Corp, or or other photo supplies.  Series RS-3550 mounting rings.
SKU-0-6-2-049