If you are looking for practical and durable color filter sheet, our products can be your unmissable choice. Made of premium materials and good craftsmanship, can provide you with stable working performance. Photo gels for light effects and color correction involving addition and subtraction of colors. Features - Color: Red -Material:PVC - Size: 29.70X21.00X0.10cm/11.67X8.25X0.04in -Made of high light transmission material, this light filter sheet is light weight, steady color temperature and low loss, helpful to use. -ColoreRed -Suitable for memory albums scrapbooks and various other art projects, can improve clarity. -Cool effects, this classroom light filters are also good for color correction, involving additive and subtractive colors, color mixing, color transmission, etc. -Provide eye movement control and helps kids with dyslexia reduce reading frustration. Package list: 12 x light diffuser sheets