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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 from: Radium-226 (Red), Plutonium-244 (Blue), Uranium-238 (Green), Thorium-232 (Orange).

Radioactive Elements Coaster Set DetailCoasters that light up when you put your drink on them.
Perfect for the chemist in your life.
Great for parties – easily remember which drink is yours.
Feature the atomic number and isotopic mass of the most stable or common isotope for each element.
Materials: Plastic.
Batteries: 8 3V CR2032 batteries (included).

$19.99 - Get it now!
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