TWSBI Diamond 580ALR Prussian Blue Fountain Pen Nib Size:Bold Now with even more consistent

Now with even more consistent ink flow when valve is opened

Volume: 18ml bottle

Bottle cap can also fit our Diamond 50 bottle cap

) The reservoir provides a set amount of ink to fill your pen and avoids the hassle of dipping your pen to the bottom of the bottle

Piston Filler Fountain pen

TWSBI Diamond 580ALR Prussian Blue Fountain Pen Nib Size:Bold Now with even more consistentOur ever popular 580AL now with matte finish, subtile details on the grip and cap. New aluminum machined grip, connector, and piston rod. Features 580 has increased ink capacity, about 30% more than 530 580 has improved the smoothness of cap thread turning 580 shows you our promise on continuous product improvement on small details Please note : ink is not included The idea behind the TWSBI Diamond 530, 540, and 580 was to go back to basics and