This pen is made up of a 3D printed pen blank, that was then filled with epoxy resin. The cap twists off, and can twist onto the opposite end so it doesn’t get misplaced while in use. The roller ball tip ensures it writes smoothly. The ink cartridge is replaceable, so if this one runs out, that doesn’t mean it has to retire to a pen graveyard.
Pens ship for $7, regardless of quantity. Order more than one at a time to save on shipping!