Tritium gas tube inside, self luminous, bright and visible in the dark.
Long life span, glows continuously for 15 – 25 years.
Super strong acrylic housing, waterproof and shockproof.
With a ring to attach to your backpack, key ring, belt loop, etc.
Compact and lightweight, no external power required, very easy to use.
Material: Acrylic + Steel + Tritium gas
Color: Blue / Yellow / Green / Orange / Red / White / Purple / Pink (optional)
Size: S / L (optional)
Dimension: 9 * 20mm
Interior Tube: 1.5 * 6mm
Item Weight: 2g
Dimension: 9.5 * 29mm
Interior Tube: 2 * 12mm
Item Weight: 4g
1 * Key Ring