TWSBI

TWSBI ECO Fountain Pen - Fluorite Purple Bronze Trim (Pre-Order Starts May 27; Ships May 29)

$59.00
$59.00
Out Of Stock

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.

 

Due to the marbled finish, the pattern will vary slightly from pen to pen. Because of this, we cannot honor specific color requests.

 

  • Body Color: Fushia with Purple, Pink, and White Marbling and w/ Bronze Trim
  • 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
  • Pre-Order Start Date: May 27, 2026
  • Release Date: May 29, 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.