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TWSBI Diamond 50 Ink Bottle - Polished AL

The Goulet Pen Company

4.5 (123)

TWSBI Diamond 50 Ink Bottle - Polished AL

Name: The Goulet Pen Company TWSBI Diamond 50 Ink Bottle - Polished AL - TWSBI Diamond 50 Ink Bottle - Polished AL
Brand: The Goulet Pen Company
SKU: 16834795601963
Price: 34.99 USD
Availability: InStock
Rating: 4.8333 (12 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$34.99

Quantity

Color

Black

Quantity

Description

This glass inkwell from TWSBI has a polished raw anodized aluminum top. It has an ink capacity of approximately 50ml.

You can use the specific upper cap design to cleanly and directly fill your TWSBI Diamond 580, Classic, Mini, or Precision ...

Reviews

4.8

12 ratings

Beautiful.

Beautiful and well made, I love it. Just make sure your pen is compatible. This did not work with my Lamy Studio aluminum fountain pen.

Andrew · 2 days ago

Beautiful and practical. This serves it purpose and does it while looking good. Makes loading up a pen easier and less messy, and if the pen in question is one of the compatible TWSBI ones, then it's truly a breeze - totally worth separating the pen for a real mess free operation.

Lucia · May 14, 2026