The Phottix Raja 150 Softbox ? Super-Big, Easy-Set-up, Super-soft light with zero hassles. The Phottix Raja 150 features the Raja?s patented quick set-up design ? opening like an umbrella and effortlessly locking into place. Features: ? Heavy-duty construction ? Uses Phottix?s Heat resistant SL Tech material ? Easy to assemble ? 12 sizes and styles ? Swappable speed rings for popular lighting brands ? Travel Bag included Included are the an inner baffle, outer diffuser and zippered travel bag. An S-Mount speed ring is included and can be easily swapped out for Elinchrom, Balcar and Profoto-compatible Speed Rings (sold separately). Phottix Speed Ring Inserts for Raja Series (sold separately): 82584 Phottix Speed Ring ? Inner Ring For Elinchrom (144mm) 82585 Phottix Speed Ring ? Inner Ring For Balcar (144mm) 82588 Phottix Speed Ring ? Inner Ring For Profoto (144mm)