You can use the combinations of color filters to create different effects, such as cool effects, enhancing skin tone in , color correcting or matching ambient, simulating different kinds of light, cheating white balance etc. These 9 pieces gel filters with different colors, enough quantity yo meet your different needs. Features -Color: Assorted Color -Material: PVC -Size: About 29.70X21.00X0.10cm/11.67X8.25X0.04in - Wide application, light filters fit for film, photo, party, video, theater, stage, and DJ lighting. - Also can help kids reduce reading frustration, improve clarity and eye movement control. - 9 pieces color gel filters for lighting effects and color correction. Cut to fit most Flash model. - Made of , the color temperature is stable and the loss is small, lightweight and rugged, a wide range of uses. - Can be used for color correction or lighting effects, color transmission, color mixing, absorption and filtering of the different wavelengths of light, create different effects. Package list: 9 x Color Filters