The 4 in 1 Kit combines two 42" Illuminator reflectors in one bag, a silver/sunlight panel and a diffuser fabric that can be used to soften the light or used as a white reflective surface.
Great portability is the advantage of two panels in one kit. It provides the ability to provide different light control when needed.
The panels can be used separately to provide reflection or diffusion, but they can also be used in tandem. The diffusive panel can be used to soften shadows and the reflective panel can be used to bounce in reflected, controlled light.
As with all of the other Illuminator reflectors, they collapse to approximately 1/3 their opened size and slip into a zippered circular bag.