SB Education 10 x Dyslexia Reading Strips with Coloured Overlays. Reading Tracking Rulers for Dyslexia Irlens, ADHD and Visual StressMAKE READING EASIER: The gentle tinted colour and narrow narrow dyslexia aid strip just above the reading line helps guide the eye, allowing you to read easier and more comfortably than ever before. 10 COLOURS: This pack contains 10 coloured overlays for dyslexia so you can quickly find out which colour benefits you the most. We find that 40% of readers prefer the light blue, but we're all different so make sure to test them all after purchase. HELP