ThinkGeek Radioactive Elements Glowing Coaster Set - Radium, Plutonium, Uranium, and Thorium - Set of 4

We love chemistry, so we light up when we talk about this product created at ThinkGeek: our Radioactive Elements Glowing Coaster Set. Featuring the atomic number and isotopic mass of the most stable or common isotope for their respective radioactive elements, these pressure-sensitive coasters light up when you put your drink on them. Choose to set your drink down on: Radium-226 (Red),...

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ThinkGeek Radioactive Elements Glowing Coaster Set - Radium, Plutonium, Uranium, and Thorium - Set of 4