Illuma boxes sport a thinner profile - a half-radial depth - which produces better efficiency, more stability and greater mobility than other soft boxes. They offer several unique features, including a removable front diffuser, silver-with-white interior surfaces and two graduated inner baffles for contrast changes. The Illuma s two different inner baffles are designed to maximize the number of options in light quality. The different baffles also address the issue of the wide variety of flash-head designs by different manufacturers this can greatly vary the way in which the flash is projected within the diffusion bank and whether or not the light values on the front diffuser are relatively even. The Illuma s inner baffles catch any of these various light projections and evens out the light distribution. Also includes carrying case. Requires speed ring for assembly.