Those with low vision will appreciate this handy bar magnifier. Place it flat side down on any reading material. The highlighted aqua bar that runs through it will help you focus and keep your place should you look away from your reading. The highlighted aqua bar is tall enough to typically hold one line up to 23cm of standard text. Just slide the bar up, down, left or right to continue reading. Clear Lucite material including a highlighted aqua bar. 1.5x magnification. Measures 23 x 1.2 x 2.5cm.