Lumagny MP75735 Magnifier 3X 5X 3.5-Inch Diameter with LED Light Enhance your viewing power with a rimmed 3.5 diameter lens. Reduce the strain on your eyes with a distortion free aspheric lens that provides 3X (Primary) and 5X (Secondary) magnification. Illuminate your reading or inspections with 2 built in wide angled LED lights for maximum lighting potential. Get the grip and comfort you deserve with a rubberized ergonomic handle and help secure the magnifier to your wrist with a comfortable hand strap. Battery operated magnifier that runs off two AAA batteries. Batteries not included.