Made by the world-renown authority in optics, this hand-held magnifying glass is simply the finest available, making tiny print or images immediately easier to see. Its precisely curved aspheric lens magnifies your field of view even at the edge of the lens with virtually no distortion, unlike inferior magnifiers that get hazy around their edges. At a using distance of 70 mm, its field of view is 30mm in diameter (a little over an inch) with a magnification of 3.5X. A special hard coating on the lens resists scratches. Made by Carl Zeiss, a German manufacturer founded in 1840 whose lenses are used by professionals the world over in cameras, telescopes, microscopes, and even at planetariums and observatories. Includes protective sleeve for lens. Made of injection-molded plastic. 7 3/4 H x 3 1/4 W x 1 D. (5 oz.)