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Titanium Keychain Tritium Vial Housing Tritium Tube EDC Titanium Carabiner 3 * 22.5mm Tritium Keychain Fob (Not Included Tritium Vial) - Walmart.com
![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
![Custom Logo Personalized Tritium Keychain - Buy Tritium Keychain,Personalized Keychain,Custom Logo Keychain Product on Alibaba.com Custom Logo Personalized Tritium Keychain - Buy Tritium Keychain,Personalized Keychain,Custom Logo Keychain Product on Alibaba.com](https://sc04.alicdn.com/kf/HTB1NIogXE_rK1Rjy0Fcq6zEvVXan.jpg)