Twsbi Diamond 50 Ink Bottle (Silver)

Diamond 580 Fountain Pen by TWSBI

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Replaceable Nib Set for TWSBI 580, 540, 530 fountain pen. Comes in B, M, F, EF, Stub1.1, or Stub1.5 sizes

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Product Review

Replaceable Nib Set for TWSBI 580, 540, 530 fountain pen. Comes in B, M, F, EF, Stub1.1, or Stub1.5 sizes

Enhanced Grip & Barrel: Upgraded from 540
Increased Ink Capacity: 30% More Than 530
Smoother Cap Thread Turning
Demonstrating Our Commitment to Continuous Improvement

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Twsbi Diamond 50 Ink Bottle (Silver)