Tinted lenses may improve reading for those with low vision, dyslexia, autism and other conditions which effect reading skills. Place the tinted overlay over your reading material for enhanced reading. Eases the harshness of bright, white paper and is very soothing on the eyes. Lens size is 8-1/2 x 11 to fit most standard reading materials. Color is yellow. We also have five other colors to choose from or purchase our sampler package (1 each of all 6) Item number 203678.or Green sheet