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The Goulet Pen Company

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The Goulet Pen Company

4.5 (123)

TWSBI 580 Steel Nib Unit

Name: The Goulet Pen Company TWSBI 580 Steel Nib Unit - TWSBI 580 Steel Nib Unit
Brand: The Goulet Pen Company
SKU: 11884893339691
Price: 22.99 USD
Availability: InStock
Rating: 4.8784 (69 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$22.99

Quantity

Color

Black

Quantity

Description

This stainless steel replacement nib unit fits the TWSBI 580, 580AL, and 580ALR. It's also backwards compatible with the 530 and 540. It includes the nib, feed, housing, and clear grip section.

Reviews

4.9

74 ratings

I am a beginner, so including instructions on replacing the nib would be helpful.

Chris · 13 days ago

This nib writes like butter!

This nib writes like butter and the service was the best of the best!

Bill · May 12, 2026

Loving twsbi diamond. Better than eco

Sheila · May 15, 2026

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The Goulet Pen Company

4.7 (42.7K)

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Description

This stainless steel replacement nib unit fits the TWSBI 580, 580AL, and 580ALR. It's also backwards compatible with the 530 and 540. It includes the nib, feed, housing, and clear grip section.