![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 at Amazon 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 at Amazon](https://images-na.ssl-images-amazon.com/images/W/MEDIAX_792452-T2/images/I/612jkoiAnML._AC_UL210_SR210,210_.jpg)
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 at Amazon
![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
![Titanium Keychain Tritium Vial Housing Tritium Tube EDC Titanium Carabiner 3 * 22.5mm Tritium Keychain Titanium Keychain Tritium Vial Housing Tritium Tube EDC Titanium Carabiner 3 * 22.5mm Tritium Keychain](https://ae01.alicdn.com/kf/A6eb807e5075e47898227f67add284f90j.jpg_640x640Q90.jpg_.webp)