This chart magnifier is the perfect aide in reading small print on charts, maps, and documents of any kind. The Brass Magnifier Chart Weight is a forged brass ring which encloses a 5x magnifying lens. The brass is brushed and lacquered so that it will not tarnish or show fingerprints. The bottom of the weight is felt lined to protect the surface it rests on and to prevent slipping. It comes gift-boxed suitable for presentation purposes. The Brass Magnifier Chart Weight is part of a collection of chart weights that includes a liquid-filled compass and clock. They make excellent personal keepsakes or corporate gifts. (Available in brass and nickel-plated.)Dimensions: Diameter 3" (76 mm)