Titanium Alloy Tritium Ring Self-luminous for 25 Years

Titanium alloy tritium ring self-luminous for 25 years

The material is made of TC4 titanium alloy, with a tritium gas tube embedded inside. The tritium gas can emit light by itself for about 25 years. Tritium does not emit light during the day. In dark places, it will emit a faint light.

There are 4 sizes, the inner diameters are 16, 18, 20, and 22mm respectively. It is best to measure your old ring before buying.

Ring height: about 8mm

Weight: about 4 grams