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![Amazon.com: TEC Accessories Isotope PRE (Picatinny Rail Edition) Glow in The Dark Keychain, Titanium Housing for 2 Glass Tritium Vial (Not Included) - Tritium Keychain Fob, Edc Key Accessories, Cool Keychain : Automotive Amazon.com: TEC Accessories Isotope PRE (Picatinny Rail Edition) Glow in The Dark Keychain, Titanium Housing for 2 Glass Tritium Vial (Not Included) - Tritium Keychain Fob, Edc Key Accessories, Cool Keychain : Automotive](https://m.media-amazon.com/images/I/612jkoiAnML._AC_UF1000,1000_QL80_.jpg)
Amazon.com: TEC Accessories Isotope PRE (Picatinny Rail Edition) Glow in The Dark Keychain, Titanium Housing for 2 Glass Tritium Vial (Not Included) - Tritium Keychain Fob, Edc Key Accessories, Cool Keychain : Automotive
![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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Automatic light 25 years crystal tritium keychain key ring fluorescent tube lifesaving emergency lights|light conditioner|light sources for kidslight wallpaper - AliExpress
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