Fountain pen TWSBI ECO - Glow Purple

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Nib size
The ECO, introduced in 2015, is the economy range ⁠— as the name suggests ⁠— TWSBI fountain pens. Despite its affordable price, it still offers a writing experience comparable to more expensive fountain pens!

It has a piston fill mechanism, allowing it to hold ink directly in its transparent barrel. Say goodbye to disposable cartridges and removable tanks!

Its translucent and hexagonal cap is screwed. The latter can also be safely placed on the end of the pen body.

  • Color of the pen: Glow-in-the-dark purple and transparent
  • Pen Material: Resin
  • Nib Color: Silver
  • Nib Material: Steel
  • Dimensions: 5.5'' with the cap closed, 6.6'' with the cap resting on the end of the body and 5.2'' without the cap
  • Weight: About 21g (without ink)
  • Note: No ink is included.
  • You will find in its box an instruction manual, a small plastic adjustable wrench and silicone grease for its maintenance at home.


TWSBI is a Taiwanese brand founded in 2009 by TaShin Precision. The latter had more than 50 years of experience in the manufacture of plastic and metal original equipment for various companies, such as Lego, but wanted to start manufacturing its own line of products. So in 2009, TaShin Precision founded TWSBI (pronounced ''twizbi'').

TWSBI's name is inspired by the phrase San Wen Tong (Three Cultures Pavilion). Wen translates to language and culture and Bi literally means writing instruments. The letters TWS are the upside down initials of San Wen Tong .

San Wen Tong is also a nod to the famous Pavilion of the Three Treasures of Emperor Qianlong, the room where he spent his time admiring three calligraphic masterpieces of the Qing dynasty: The Mid-Autumn Letter by Wang Xianzhi, The Letter to Bo Yuan by Wang Xun and The Clear Sky After a Sudden Snowfall by Wang Xizhi.

For several years, TWSBI has been one of our favorite brands of writing instruments, since they are focused on the accessibility of their products. Its pens are affordable, easy to use and of high quality.