Lightweight and thermoplastic body fits comfortably on eye Loupe with a metal clamp Clip for fixation onto spectacles, which can be fastened on the right or left side.for Ideal for hands free use clips on to glasses frame An essential tool for professional jewelers dozens of uses around home, shop and school Great for collectibles, arts and, jewelry repair, electronics, science and watch repair This loupe easily attaches to the frame of any pair of regular eyeglasses, Manufacturer: jklymm