The Set of 15: Cinegel Sampler Kit - 20x24" from Rosco is an all-purpose selection of the most popular Cinegel products. There are fifteen 20 x 24" (51 x 61 cm) Rosco light control materials for the photographer. Included are materials for diffusion, reflection, color effects and mixed-light correction (strobes, tungsten, "hotlights", or cool white fluorescents).