TWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditiona…

Piston Filler Fountain pen.Simply unscrew the end cap, dip into ink, screw back the end cap, and you…

Piston Filler Fountain pen.Simply unscrew the end cap, dip into ink, screw back the end cap, and you…

Piston Filler Fountain pen.Simply unscrew the end cap, dip into ink, screw back the end cap, and you…

Piston Filler Fountain pen.Simply unscrew the end cap, dip into ink, screw back the end cap, and you…

Piston Filler Fountain pen.Simply unscrew the end cap, dip into ink, screw back the end cap, and you…

Stainless Pipe extension to help you get to the bottom of ink bottles Fits TWSBI Diamond series foun…

Pocket Sized!!  Simply pull up, push down and your ink is filled, ready to go.  Vacuum fil…

Pocket Sized!!  Simply pull up, push down and your ink is filled, ready to go.  Vacuum fil…

TWSBI's popular 580AL now with matte finish, subtile details on the grip and cap. New alum…

TWSBI's popular 580AL now with matte finish, subtile details on the grip and cap. New alum…

TWSBI's popular 580AL now with matte finish, subtile details on the grip and cap. New alum…

TWSBI's popular 580AL now with matte finish, subtile details on the grip and cap. New alum…

TWSBI's popular 580AL now with matte finish, subtile details on the grip and cap. New alum…

Pen cap is able to post onto the back of the pen Piston Filler Fountain pen.Simply unscrew…

Piston filler type fountain pen. Roughly the same height as an iPhone when capped and stored away. S…

Piston filler type fountain pen. Comes in EF, F, M, B, stub1.1 Roughly the same height as an iPhone …