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TWSBI ECO Fountain Pen - Bahama Yellow
TWSBI

TWSBI ECO Fountain Pen - Bahama Yellow

4 reviews
Regular price
$37.00
Sale price
$37.00
Regular price
Unit price
/  per 
1 Item in Stock
 
 
This item is a deferred, subscription, or recurring purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.

The ECO is the most affordable model yet from TWSBI. This pen features a piston mechanism, a clear barrel, clear cap and piston knob. The nib is smooth with a little feedback. The barrel is clear and smooth, which has lesser grip than a typical pen. Overall, it feels great holding in hand.

 

  • Body Color: Opaque, Yellow
  • Body Material: Resin
  • Cap Type: Screw-cap
  • Compatible inks & refills: Bottled inks
  • Filling Mechanism: Piston
  • Nib Material: Steel
  • Diameter: 0.5"
  • Length: 5.2"
  • Max Ink Capacity: 1.76ml
  • Release Date: March 20, 2026

 View all TWSBI products

 

About TWSBI:

TWSBI 三文堂 (San Wen Tong) is one of our earliest collection even before the store. TWSBI started as an OEM manufacturer for different western brands, and around 2009, they decided to start their own brand. With 50 years of experience in pen making, they took to fountain pen forums and gather users’ feedback. It was said that Pelican M800 was the model they were inspired. Most of their pens are transparent, so it’s really fun to see the ink color and it lasts for a very long time.

The name 三文堂 (San Wen Tong) comes from the Hall of the Three Rare Treasures, created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the name “San Wen Tong” was reversed and thus turned into "TWS". The last letters "Bi" was added with its literal meaning of "writing instruments" in Chinese. Thus combining the two segments, creating TWSBI.

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Customer Reviews

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C
Carmelita Young
TWSBI ECO Fountain Pen - Bahama Yellow

Such a great looking pen and can't wait to try all the inks I have that will coordinate with it! Yoseka of course did a great job on my order! Love this store!

M
Mel D.
TWSBI ECO Fountain Pen - Bahama Yellow

Beautiful pen. Feels good for a tiny hand. Writes well. Highly recommend

A
AOO
TWSBI Obsessed

I love TWSBI pens so much. The piston mechanism makes it so easy to experiment with mixing inks on the fly, and there's something so pleasing about watching the ink move as I write.

I have TWSBI in EF, F, and 1.1 Stub. Each nib writes incredibly smoothly, and the pen itself is so aesthetically pleasing. The 1.1 Stub forces me to slow my writing and really pay attention to my penmanship as much as I do the words on the paper. I've attached a photo showing how the 1.1 stub looks in print and cursive. The ink I'm using is Sailor Yurameku 2nd Edition Kokoroguma ink, also purchased at Yoseka.

User picture
A
AT
Love it

This is my first Twsbi Eco, absolutely love how smooth it writes. Plus love the colour.

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