Heretic Thoth Pen Blizzardworn finishThe Thoth is the first pen design from Heretic Knives. It features a blizzard worn finished titanium tail cap, end cap, anodized aluminum barrel, titanium bolt, and a titanium rollerball clip. The pen is modular so you can run the pen full size (5. 02") or you can remove the barrel and ink cartridge extension to run a smaller version (3. 48") with no additional purchases required or tools.