Here's a simple and economical solution for on-the-spot light modifying. These diffuser/ modifiers slip right over the ridge of your circular reflector to help reduce light intensity, producing a softer and broader quality of light, while still maintaining the same light quality. If you need to further reduce your light output, just slip another modifier over the first. They also can be used with other light modifiers such as umbrellas, grids, honeycombs and barn doors. Perfect for altering your light in cramped conditions or on location. Constructed of lightweight, durable nylon, Xenophon Light Diffusers are reversible and washable. One 11" diameter Xenophon light diffuser.