TWSBI’s latest limited edition, following the “Kai”, “Draco” and “Aurora”, is the TWSBI “Obsidian”! This pen features a deep black, flecked acrylic paired with rose gold trim, including a rose gold nib similar to those found on the TWSBI 580. This pen is a piston filler.

Available nib sizes include extra-fine, fine, medium, and broad only. No stub option as of now.