You will receive 8 pieces guide reading A4 overlays in 8 different colour. The light colour board help to focus on reading, makes reading faster. 8 COLOURS READING OVERLAYS: Choose from 8 different colour overlays to see which colour benefits you or your child the most: blue, light blue, green, light green, yellow, pink, rose red, purple. The selection of colours helps a variety of learning difficulties and dyslexic tendencies, help compatible with secondary school children. A4 READING OVERLAYS AIDS: The colour overlays for dyslexia is made of PVC material, high transparency, flexible, not easy to deform, well made and beautiful to look at, with plastic film scratch resistant. Each coloured overlay is standard A4 size 29.7cm by 21cm, size compatible with use with textbooks, worksheets, and ideal for long-term reading. REDUCE VISUAL STRESS: These are aid compatible with some children with dyslexia or ADHD & IRLENS, also compatible with some adults visually impaired with kerataconus or irlens syndrome. The A4 coloured overlays help to reduce visual stress and read books without getting headaches and enjoy reading. WIDELY APPLICATIONS: The A4 coloured overlays for reading is a really great aid compatible with people who are sensitive to glare, compatible with all ages from toddler to adult, compatible with school, college, university, home or office use. A4 standard size color overlay is designed to relieve eyestrain, help reduce visual stress and make reading faster and more comfortable. Great compatible with use with textbooks, worksheets. Also as well as sitting over paper, you can actually use up against your computer screen. Specifications: Material:PET Product size: 29.7*21cm/11.6*8.2inch Product weight:180g