The EYE LEVEL READING RULER is a colored 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.
Simply read the text through either of the tinted plastic strips of your selected color, and track down the page: broad strip for paragraphs; narrow strip for single lines.
Purchase in a pack of 30.