TWSBI Diamond 530/540/580 Nib Unit

Nib Size: Extra Fine


- Type: Nib Unit
- Nib Material: Steel

- Compatible With: TWSBI Diamond 530/540/580

Spare Nib Sets for Diamond 580 fountain pen. 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.

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