Achromatic glass lens provides better clarity than many of the lighter weight acrylic lenses in most magnifying glasses. This high magnification, 15X (56D) is exceptional for an up close look at the tiniest print and items. The lens width is 21mm (3/4"). The light source is an incandescent bulb and it operates on 2 AA batteries, not included.
The small size of this powerful magnifier and its included sturdy protective pouch make it easy to carry around wherever you go. Excellent for the hobbyist or visually impaired.