Those with low vision will appreciate this handy bar magnifier. Place it flat side down on any reading material. The highlighted yellow bar that runs through it will help you focus and keep your place should you look away from your reading. The highlighted yellow bar is tall enough to typically hold one line up to 6cm of standard text. Just slide the bar up, down, left or right to continue reading. Clear Lucite material including a highlighted yellow bar. 1.5x magnification. Measures 6 x 1.2 x 2.5cm.