TWSBI Diamond nib F

TWSBI Fountain Pens and Supplies

Spare 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 perfect
B is for statements!! Sign a check in B, write a header in B, do some coloring/shading in B
Stub nibs are italic in writing style (have a special card or invitation to write?)


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  • : Twsbi
  • : Twsbi
  • : books