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

CUSTOM DESIGNED: The TEC-T323-2X Isotope Fob is designed around the use of two standard 3mm x23mm tritium vials (NOT INCLUDED), which will glow continuously for many years without the need to charge it from sunlight or UV light.
PICATINNY RAIL EDITION: Visual appeal rooted in the Picatinny rail, a military standard rail interface system. Designated as the PRE model (Picatinny Rail Edition), it takes our original Isotope design to the next level.
TITANIUM HOUSING: Eight large thru holes allow for maximum tritium visibility, while the virtually indestructible grade 5 titanium housing offers superior protection for the two glass vials. Perfect for attaching it to your keychain, camping gear, zipper pulls on gear bags or jackets
MATERIAL: 6Al-4V (Grade 5) Titanium /OUTSIDE DIAMETER (widest side): 7.0 mm [0.275"] /OVERALL LENGTH: 54.0 mm [2.216"] /SPLIT RING HOLE SIZE: 3.0mm [0.118"] /TOTAL ASSEMBLED WEIGHT WITHOUT TRITIUM VIALS: 4.5 grams [.16 oz] /TOTAL ASSEMBLED WEIGHT WITH TRITIUM VIALS: 4.9 grams [.17 oz]
TRITIUM VIALS NOT INCLUDED: They do not include tritium vials, you must purchase them from another source typically outside the United States.

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