The MT-33, MagniTouch is a 3x power touch activated loupe. It has 3 super bright LED lights and a crystal clear glass lens. Use the on/off switch for steady" light setting. The twist-action focus allows you to "zoom-in" for greater detail. The MagniTouch is a great magnifier for detailed inspection, to view stamps and coins and for reading fine print or as a desk accessory. Uses 2 CR2016 batteries (included)."Magnifying Power: 3x LensLens Material: GlassFeatures: LED LightedHeight: 3.8Width: 3.8"Depth: 2.2"Weight (Approximate): 7.40 ozPackage Contents: MagniTouch MT-33 Loupe Zip Case Microfiber Lens Cloth 2 x CR2016 Batteries Package Contents MagniTouch MT-33 Loupe Zip Case Microfiber Lens Cloth 2 x CR2016 Batteries "