Made with Semi-Gemstones from all over the world Heavy zinc alloy metal mix frame, never rust! globe Surfaced with acrylic resin protection Globe diameter is 13-inch or 330mm Expensive Fine White and Colorful Australia MOP shells used We love perfection however due to hand cut, glued, pasted, and polished, minor errors on spelling, uneven polishes, surface fine lines, or small loosing stone dusts inside globe may be expected they are not defect. Gemstone globes are hand made Mainly for Collection and Decoration, it is not designed for serious map users