Useful for people with limited eye-sight.
Enlarges fine print to 4X its original size. It is a high quality magnifier with a 1 1/4" (3.2 cm) square unbreakable clear lens and a sharp focused flashlight. Operates on two AAA batteries (supplied). Bulb is activated only when thumb switch is depressed. Measures 4 3/4 x 1 1/2 x 7/8" (12 x 3.8 x 2.2 cm).