Flash Bounce Cap Diffuser for the Canon 580EX II Speedlite Flash + 2 JB Digital Microfiber Lens Cleaning Cloths Package including: 1 x Flash Diffuser Cover / 2 x JB Digital Microfiber Cleaning Cloth. Flash diffusers not only diffuse the light, they spread the light as well. It reduces the maximum working distance between your flash and the object. The cloth is made of an extremely densely woven microfiber. The Microfiber Cloth is a perfect tool for cleaning HD and Dslr's digital cameras, etc.