SKU: 15492534342

TWSBI Diamond 580 Clear Fountain Pen

Sale price$50.39 Regular price$55.99
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Ships within 48 hours · Estimated delivery Sep 2 - Sep 7

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Description

TWSBI Diamond 580 Clear Fountain PenFeatures Improved grip and end barrel section compared to 540 580 has increased ink capacity, about 30% more than 530 580 has improved the smoothness of cap thread turning 580 shows you our promise on continuous product improvement on small details Please note : ink is not included The idea behind the TWSBI Diamond 530, 540, and 580 was to go back to basics and capture the simplicity and elegance of traditional writing instruments. In recent years,

Features

Improved grip and end barrel section compared to 540

580 has increased ink capacity, about 30% more than 530

580 has improved the smoothness of cap thread turning

580 shows you our promise on continuous product improvement on small details

Please note : ink is not included

The idea behind the TWSBI Diamond 530, 540, and 580 was to go back to basics and capture the simplicity and elegance of traditional writing instruments. In recent years, the development and modernization of writing instruments has resulted in traditional writing instruments, such as fountain pens, falling into obscurity. It was our goal to bring the past back to life by creating a traditional fountain pen that even modern day society can appreciate.

TWSBI Diamond 580, a classic fountain pen with a piston ink-filling system. By fusing the traditional mechanisms of the fountain pen with a modern industrial design, we have created an eye-catching fountain pen that is simultaneously appreciative of the past and relevant in the present. The Diamond 580 comes with a benchmark ink-filling mechanism and has all detachable parts. We felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen.

A quick no brainer guide in choosing nib sizes in an overly complicated fountain pen world:

If you write small, go with an EF
For the normal writer, F is the most popular
If you tend to lean on a bigger font, M will be perfect
B is for statements!! Sign a check in B, write a header in B, do some coloring/shading in B
Stub nibs are italic in writing style (have a special card or invitation to write?)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 15492534342

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4.2 ★★★★★
Based on 11 reviews
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L
Verified Purchase
Lisa Hill
New York, US
★★★★★ 5
Quality and convenient four-pack
Size: 12x24x1
Exactly what I needed and love the idea that it comes in a four pack which makes it much more convenient when it's time to change my filters. They are quality made at a decent price. Will purchase again when needed!
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Reviewed in the United States on May 9, 2026
M
Verified Purchase
Michael
San Leandro, US
★★★★★ 5
Great filter for dusty environments.
Size: 20x25x1
What a wonderful filter! Did a great job keeping this Arizona house dust down to a minimum. Yes, I will buy it again.
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Reviewed in the United States on June 1, 2026
J
Verified Purchase
Jamie lee
Grantham, US
★★★★★ 5
Good Filters
Size: 16x25x1
Good filters. Gets the job done and price was not bad either.
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Reviewed in the United States on May 18, 2026
S
Verified Purchase
Sophie A.
Los Angeles, US
★★★★★ 5
Absolutely love this purse!
Color: Nude
Absolutely love this purse! The material feels and looks lux. Very smooth material, and it goes with many outfits and events. Has so much room inside and a pocket as well. Very versatile, you can use it as a purse or a clutch. Does not feel heavy and is very sleek to carry. Definitely picking up in another color!
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Reviewed in the United States on November 24, 2025
Y
Verified Purchase
Yvette C.
Bozeman, US
★★★★★ 5
Bigger than I thought
Color: Black
I love this bag! The magnetic closure is strong. I kinda overfilled my bag and with a little bit of adjusting, it kept closed. I fit my mini wallet, tin of Altoids, set of keys, mini bottle of perfume, box of cigs and lighter. I even had enough space for my phone and charger. The chain strap is a little uncomfortable but it's removable, so no biggie.
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Reviewed in the United States on May 20, 2026

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