Pack weight: 18 oz. Lighted, fully adjustable, flexible arm magnifier that attaches to your table-top for convenient hands-free use. Its large 2x power lens gives you a sharp, distortion-free view and 3.5x power bi-focal spot lens allows you to see even the finest details with ease. Crystal-clear acrylic lens. Three super-bright LED lights allow use in low-light conditions. Perfect for crafts, hobbies, model building and small electronics. Attach to most tables using the supplied "C" clamp. 4.5V DC adapter (included). Requires (3) AAA batteries (not included). Boxed.