The MiniBrite Pocket Magnifier is a compact 3x power slide-out magnifier with a protective plastic sleeve The built-in LED light makes it perfect for use in the dark, and its crystal-clear acrylic lens gives you a sharp, distortion-free view The MiniBrite is compact enough to fit in your shirt pocket or purse Powered by 3 AAA batteries (not included) ; Lens Diameter: 1.4 inch x 1.5 inch Perfect magnifier for reading books, newspapers, magazines, coupons, labels, inspection, hobby, crafts, tasks and more