This TWSBI Obsidian fountain pen is made of a dark grey/black swirled acrylic resin, complemented by rose gold-plated trim, and is equipped with a rose gold-plated stainless steel nib, of comparable size to the TWSBI 580 nib. Like all TWSBIs, it comes with a benchmark piston ink-filling mechanism and has all detachable parts. An ink window allows you to see your remaining ink level.
While the pen cap will physically fit onto the back of the pen body in a way that would be considered ‘posting’, TWSBI recommends NOT doing so to avoid potentially scratching the barrel.
The TWSBI Obsidian is a limited edition and will not be produced ongoing.
