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Tritium Light Stainless Steel Tritium Key Chain Including Tritium Vials 3mm*22.5mm Tritium Tube Automatic Light 25 Years-green - Hasps - AliExpress
![I got a keychain that uses the radioactive decay of Tritium (the radioactive isotope of hydrogen) to emit light. : r/mildlyinteresting I got a keychain that uses the radioactive decay of Tritium (the radioactive isotope of hydrogen) to emit light. : r/mildlyinteresting](https://i.redd.it/w8aszm9jxzi41.jpg)
I got a keychain that uses the radioactive decay of Tritium (the radioactive isotope of hydrogen) to emit light. : r/mildlyinteresting
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Keychain Tritium Tube | Luminous Tritium Keychain | Tritium Used | Tritium Keychain Edc - Zipper Sliders - Aliexpress
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