Pack of 8 A4 Plain Blue Dyslexia Overlay Reading Sheets PET Material, Rounded Corners. Pack of 8 A4 plain coloured dyslexia overlay reading sheets designed to support reading and visual tracking. Single colour for consistent use across books and documents. Made from durable 0.25mm PET material, these sheets provide a smooth and flexible overlay suitable for repeated use. The rounded corners provide a smooth finish for safe and comfortable handling. Sized (210 x 297mm) for A4 sheets, these reading strips are suitable for use with books, documents, and printed pages in schools, offices, and home learning environments.