Easily change or replace your Twsbi Diamond 580 nib
Replacement nib unit for TWSBI Diamond 580 fountain pens.
Both nib and clear Diamond 580 grip section supplied including metal ring. Also suitable for Diamond 540 pens, just swap out the old grip section.
Polished steel nib engraved with TWSBI logo and branding, available in a wide range of nib sizes: fine, medium, broad, extra-fine, stub 1.1mm and stub 1.5mm.
About Twsbi
TWSBI is renowned for its precision-engineered fountain pens, specialising in smooth, reliable piston-filling systems. Explore our collection to discover modern designs built for everyday writing and lasting performance.
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