Perfect for needlework, reading, jewelry making, and dozens of other activities, this visor comes with a built-in light and 4 interchangeable lenses (1.2x, 1.8x, 2.5x, 3.5x). Choose the magnification that's right for your eyes and the task at handlenses can be doubled for increased magnification. Adjustable fit. Requires 2 "AAA" batteries (not incl.). 9 1/2"L x 7 3/4"W x 2 1/2"D.