TWSBI Diamond 580 Spare Nibs Nib Size:M 1 nib choices

1 nib choices

It is not the usual thin shopper that will easily get damaged

inner mechanism

Keep a higher brilliance by using original colors instead of mixing with other colors

TWSBI Diamond 580 Spare Nibs Nib Size:M 1 nib choicesSpare 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