New! They look like a bookmark with a colored transparent strip and function like a highlighter, helping readers stay on track and focused. These colored reading windows are excellent for individuals with visual perceptual challenges or difficulty with focusing. Each one of these smart reading aids measures 7" x 1-1/4". Bookmark Reading Guides come in your choice of: pink, green, orange, yellow, blue, or clear Also available in a Sampler Pack which includes one of each of the 4 original colors (pink, green, orange, and yellow).