This pocket size magnifier features 2 lenses, a main 21mm lens offering 30x magnification and secondary 12mm lens with 60x magnification. Also features an LED light as well as a UV light for currency detection or fluorescents in stone. LED light comes on automatically when open. Measures 2 1/2"x1 1/2" closed, 4"x 1 1/2" open. 3 LR113 batteries included.