Reading Guide products are designed to aid students and adults with the following difficulties: skipping words, skipping lines, reversing letters, transposing letters, losing your place, re-reading lines, squinting, concentration, comprehension, red/watery eyes and reading fatigue. Easily track print through transparent tinted window.Details:Light green1.25" x 7.25"24 countColored overlays are beneficial to readers of all agesUsing frames and colored plastic allows the reader to easily see the contrast of words on the page therefore increasing the ability to concentrate without distractionFor ages 5 and up