Seller: luciteria (328) 99.6%, Location: Tumwater, Washington, Ships to: US & many other countries, Item: 122549036282 Condition: New, Details: Copper, nature's only red metal! A kitchen full of polished copper pots and pans is a sight to behold and so are these cubes that you can't resist picking up and playing with. But, unlike the case with your pots, cleaning these delicate cubes is inadvisable. If you're clumsy enough to get ketchup on it use a cotton ball, water and a little prayer. So yeah, it bears repeating: copper is delicate. Avoid touching it with your bare hands. The oils and acids will stain it permanently. Even leaving it out in open air will eventually.... have you seen the Statue of Liberty? Comes in 10 and 20 millimeter versions. This listing is for one 10mm cube. Weight is 8.9±0.5g. Founded in 2015, Luciteria Science is a US-based company dealing in pure elements from the periodic table, scientific collectibles and acrylic products.