Hands-free Illuminated Double Loupe lets you magnify your workpiece 10x while working with both hands. Excellent for all types of work where magnification and illumination are essential to complete the task at hand. Includes two 10x magnification loupes...each with its own brilliant LED light source...cleverly mounted to a black metal eyeglass frame. Loupes slide left-to-right on the frame for proper fit; you locate each where needed for optimal vision and comfort. Light sources can also be aimed as needed. Note: This is not a binocular magnifier; you use one loop at a time and swing the other up and out of the way while working. Working distance is 1 inch from lens. Includes two 2CR1620 power cells.