These excellent multiple lens Peak magnifiers offer superior image quality and are ideal for quick inspection. Features optical glass elements in a fixed focus design. The clear acrylic base allows ambient light to illuminate subject. They all also include a built-in flashlight assembly (non-removable). Requires 2 “C” batteries, not included. Weighs 3.5 oz.; Dimensions of illumination assembly: 1-3/8," Dia. x 7" L.