Carson Optical MagniFlex Hands Free Tabletop Mounted Magnifier (CL-65) LED Lighted, fully-adjustable, flexible neck magnifier that attaches to your tabletop for convenient hands free use Large lens gives you a sharp, distortion-free view and 3.5X power spot lens allows you to see even the finest details with ease 2x Magnification with a 3.5x Spot Lens | Lens Diameter: 4.3 inches | Great work bench magnifier for hobbyists, crafts, model building, reading, soldering and other low vision tasks. Powered by 3 AAA batteries (not included) or the included 4.5 volt AC/DC adapter | Also included with a table top C-clamp Backed by Carson's limited lifetime warranty