[Product Information]

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• Enjoy this 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 place your drink on them.
• Choose from red Radium-226， blue Plutonium-244， green Uranium-238 (Green)， and orange Thorium-232.
• Great for a conversation starter and parties， enjoy these Radioactive Glowing Coaster Set!
• Coasters come packaged with a radioactive themed box and each coaster measures about 3 3/4-inches long.
• Each coaster require 2x 'CR2032' batteries (included). Ages 13 and up.