10 Tinted Duo Window Reading Rulers, 1 of each colour (Yellow, Aqua, Sky, Grass, Celery, Jade, Purple, Pink, Magenta & Orange). The EYE LEVEL READING RULER is a coloured overlay filter and text highlighter about the size of a six-inch ruler that will fit easily into a pocket of pencil case, or can be kept in the pages of a book as a bookmark. Discreet and not childish-looking, the reading ruler is made of a combination of opaque and transparent plastic that both underlines the text and highlights it in a coloured tint. Simply read the text through either of the tinted plastic strips of your selected colour, and track down the page: broad strip for paragraphs; narrow strip for single lines. Narrow (app. 1 cm) strip for highlighting single lines of text Broad (app. 2.5 cms) strip for scanning ahead in a paragraph, and for studying diagrams, tables, columns of figures etc. Text marker (a solid line on the edge of the broad strip) for tracking down a paragraph Colours can be combined to create up to 30 tints Ideal for all ages - nursery to adult. School, college, home or office use. Easy to store; inexpensive to buy New Features and Improvements to the Reading Rulers this Year: Slightly larger size of 205mm x 80mm New design with re-calibrated colours More scratch resistant Individually sleeved Recyclable Manufactured in environmentally-friendly PET instead of PVC.