TWSBI DIAMOND 580 NIB (EF, F, M, B, Stub) Size:EF you will permanently alter the

you will permanently alter the tip

They make a fantastic travel organiser

Multi-functional pockets for flexible use (5):

There are only a few writing instruments which have been successful in the market for decades without big changes

The pen is in two parts

TWSBI DIAMOND 580 NIB (EF, F, M, B, Stub) Size:EF you will permanently alter theSpare Nib Sets for Diamond 580 fountain pen Choice: EF, F, M, B, Stub1. 1 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. A quick no brainer guide in choosing nib sizes in an overly complicated fountain pen world: If you write small, go with an EF For the normal writer, F is the most popular If you tend to lean on a bigger font, M will be