Reduce Glare, Increase Focus & Prevent Visual Stress With Habercrafts Universal Use Coloured Reading Overlay Strips. Specially Designed For Dyslexia, ADHD & Irlen Syndrome, Our Reading Rulers Alleviate Eye Strain & Make Reading Faster And More Comfortable, Providing Focus And Clarity On Every Line. Everybody Is Different, So Each Pack Contains 8 Scientifically Selected Colour Tints (Yellow, Light Green, Green, Light Blue, Peach, Pink, Blue & Purple) To Strengthen Visual Tracking Skills & Block Distractions, So You Can Always Find The Best Colour For You. Each Overlay Measures 19cm X 7cm And Is Made Of Premium Shatterproof, Flexible & Durable See Through Plastic, With A Protective Scratch Proof Film On Both Sides, So It Always Arrives In Perfect Condition, Without Blemishes Or Scratches. Improve Clarity, Reading Accuracy, Word Comprehension & Attention Span, By Simply Laying The Reading Strip Flat Onto The Text, Book, Magazine Or Screen You Need And The Writing Will Instantly Become More Bold And Vivid. Recommended For All Ages, And For Individuals Who Wear Glasses, Whether At Work, School Or Home. Available In An Array Of Sets, From 1 Set (8 Reading Aids), 3 Sets (24 Reading Aids), 5 Sets (40 Reading Aids) & 10 Sets (80 Reading Aids) So You Always Get The Best Price No Matter The Size Of Your Project.