The Reading Ruler, from Robiii, is a guided reading strip that helps to improve reading skills. The reading ruler is a great tool for students with reading difficulties. This simple reading aid makes reading much more comfortable and it can make all the difference in the life of a student with dyslexia. The Reading Ruler helps readers highlight the sentence they are reading. The benefits of a reading ruler: Improved reading comprehension. Increased reading speed. Improved attention span. Improved reading skills. For 5yrs +