1. Description: Made of high-light transmittance materials, it is lightweight, with a constant color temperature and low loss. These color filters are used in experiments related to additive and subtractive color mixing, color transmission, absorption, and filtering of light of different wavelengths. 2. Product features: - Color: Multiple colors - Material: PVC - Size: Approximately 29.70X21.00X0.10 cm/11.67X8.25X0.04 inches - Also suitable for photo albums, scrapbooks, and various other art projects. - Correction gel filters are suitable for film, video, photography, stage, theater, parties, and DJ lighting. - Change the color balance of images. Flash gels help improve the color balance of images. - Can be used in combination to create various effects, such as cool effects and color correction, suitable for studio flash LED bulbs. - Colored lighting filters or gels are usually used as accent lighting or to add dramatic colors to selected parts of the background or scene to produce artistic effects. 3. Packaging list: 9 x Color filters