It's finally ready for sale; please welcome the TritTag 3XL! A characterful lantern for your keychain, the TritTag 3XL accomodates 3pcs 3.0x22.5mm tritium vials.
The TritTag 3XL can be bought here: http://shpws.me/oOYY
The inside cavities will require cleaning using a drill. Please see the installation page for information on how to do this.