11 scientifically selected colours Made from crystal clear PET, not PVC. Simply remove protective film and place over text and read. Each overlay has a gloss and a matt side. A great Dyslexia, Visual Stress and Irlen tool. Make reading easier and more comfortable Created by Crossbow Education – trusted UK school supplier and Dyslexia and Visual Stress Specialists UK Education Resources Award-Winning product Overlay Size 216mm x 149 mm
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