This is a pendant with space for three tritium vials.
This is a pendant for a total of three green 2 mm x 12 mm tritium vials.
The vials themselves are glued in with clear epoxy and glow dimly in a darker environment.
For prototyping I printed it with PLA and then had it printed for me in polished nickel steel by a 3D printing service.
I was inspired by this web shop for the design: http://www.byinnovodesign.com/product-page/titanium-tritium-delta-pendant
The author marked this model as their own original creation. Imported from Thingiverse.