TWSBI Diamond 580 Nib Set - Extra Fine Custom 823 Fountain Pens Filling several times in a

Filling several times in a row increases the filling quantity

Platinum ink cartridges embody the very best in Japanese design and engineering

supply can be difficult

use a Noodler's mid blue

TWSBI Diamond 580 Nib Set - Extra Fine Custom 823 Fountain Pens Filling several times in aThis is a replace nib, feed and head piece for the TWSBI Diamond 580 Fountain pen in Extra Fine. Will fit the previous generation 540 and 530 fountain pens. Easy holder case for storage when not in use. Quick and Simple changes between nibs. No hassle. TWSBI Inspired by writing After 50 plus years as an OEM manufacturer for different global brands, Ta Shin Precision decided to start selling under their own brand, and thus TWSBI was born. TaShin