The QuiqLite T1 Tritium Tactical Hand Cuff Key is the world’s premier handcuff key, designed for law enforcement professionals who demand the highest EDC quality tools available. Featuring a radioactive Gaseous Tritium H3 Light Source (GTLS) powered by a rare radioactive isotope of hydrogen, it delivers continuous, reliable illumination in low-light conditions for up to 15-20 years - ensuring you can locate your key when you need it most.