Description
It contains a small glass tube to seal a small amount of gas tritium, tritium gas emitted by the electron excitation fluorescent coating, emitting light, and other similar fluorescent keychains.

Features:
- The brightness of the tritium trachea related to the volume and the various fluorescent coatings.
- No need for external energy, non-fluorescent stick, without sun exposure and power, continuous self-luminous for 25 years.
- The biggest advantage: The product is waterproof and can be used in rough environments.
- Titanium protection shell, better than ordinary plastic shell!

Specifications:
- Material: Titanium alloy shell, Tritium air pipe
- Size: length 33mm, diameter 6mm
- Tritium gas pipe: length 22.5mm, diameter 3mm

Package Includes:
- 1x Automatic Titanium Light Keychain