This set includes four light correction filters and four diffusion filters. Each piece attaches easily between the Mini's gel frame and the face of the unit.Full CTO (204) - Converts 5600K to 3200K1/2 CTO (205) - Converts 5600K to 3800K1/4 CTO (206) - Converts 5600K to 4600K1/8 CTO (223) - Converts 5600K to 5400KOpal Frost (410) - 1/2 F-Stop DiffusionHalf White Diffusion (250) - 3/4 F-Stop DiffusionWhite Diffusion (216) - 1 F-Stop DiffusionLight Grid Cloth (432) - 1-1/2 F-Stop Diffusion