This item is a set of 4 pcs lighting gel filters, made of transmission material - polyester film, which is smooth, flat, steady color temperature and low loss. Different transparency of gel filter provides steady color temperature and good saturation of color. Features - Color: As shown. - Material: Polyester. - Size: 0.04cm/ 19.69 x 15.75 x 0.02inch. - Colored gels for lights used in film, video, photo, stage, theater, party, and DJ lighting, etc. - It can be cut into piece meet your different demands. - Life of depends on different bulbs, lightness, working hours of lights. - The lighting filter may melt after absorbing over much infrared energy, so please cool down your light source after 30min using the gel filter. - Do not directly place the lighting gels on the face of lighting instruments. Package list: 4 x lighting gel filter