TWSBI Fountain Pen Brown

TWSBI

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      19 products
      TWSBI VAC700R Fountain Pen – Kyanite on a white background
      TWSBI VAC700R Fountain Pen – Kyanite, showing the cap and body on a white background
      TWSBI VAC700R Vacuum Filler Fountain Pen – Kyanite Blue
      $85.00
      TWSBI Diamond 580ALR Fountain Pen – Prussian Blue on a white background
      TWSBI Diamond 580ALR Fountain Pen – Prussian Blue, showing the cap and body on a white background
      TWSBI Diamond 580ALR Piston Filler Fountain Pen – Prussian Blue
      $69.00
      TWSBI Diamond 580 Fountain Pen – Iris on a white background
      TWSBI Diamond 580 Fountain Pen – Iris, showing the cap and body on a white background
      TWSBI Diamond 580 Piston Filler Fountain Pen – "Iris" Rainbow
      $85.00
      TWSBI ECO Fountain Pen – Indigo Blue Bronze on a white background
      TWSBI ECO Fountain Pen – Indigo Blue Bronze, showing the cap and body on a white plate
      TWSBI ECO Piston Filler Fountain Pen – Indigo Blue Bronze
      $54.00
      TWSBI ECO Fountain Pen – Espresso Bronze on a white background
      TWSBI ECO Fountain Pen – Espresso Bronze, showing the cap and body on a white background
      TWSBI ECO Piston Filler Fountain Pen – Espresso Bronze
      $54.00
      TWSBI ECO Fountain Pen – Irish Green Onyx on a white background
      TWSBI ECO Fountain Pen – Irish Green Onyx, showing the cap and body on a white background
      TWSBI ECO Piston Filler Fountain Pen – Irish Green Onyx
      $54.00
      TWSBI ECO Fountain Pen – Smoke Rose Gold on a white background
      TWSBI ECO Fountain Pen – Smoke Rose Gold, showing the cap and body on a white background
      TWSBI ECO Piston Filler Fountain Pen – Smoke Rose Gold
      $54.00
      TWSBI ECO Fountain Pen – Slate Blue Onyx on a white background
      TWSBI ECO Fountain Pen – Slate Blue Onyx, featuring the cap and body on a white background
      TWSBI ECO Piston Filler Fountain Pen – Slate Blue Onyx
      $54.00
      TWSBI ECO Fountain Pen – Caffe Bronze on a white background
      TWSBI ECO Fountain Pen – Caffe Bronze on a white background showing the cap and body
      TWSBI ECO Piston Filler Fountain Pen – Caffe Bronze
      $54.00
      TWSBI ECO Fountain Pen – Cosmo Onyx, closed, on a white background
      TWSBI ECO Fountain Pen – Cosmo Onyx on a white background
      TWSBI ECO Piston Filler Fountain Pen – Cosmo Blue Onyx
      $54.00
      TWSBI ECO Fountain Pen – Carrara Onyx, closed, on a white background
      TWSBI ECO Fountain Pen – Carrara Onyx on a white surface
      TWSBI ECO Piston Filler Fountain Pen – Carrara Onyx
      $54.00
      TWSBI ECO Fountain Pen – Creme Rose Gold, closed with white background
      TWSBI ECO Fountain Pen – Creme Rose Gold with rose gold accents on a white background
      TWSBI ECO Piston Filler Fountain Pen – Creme Rose Gold
      $54.00
      TWSBI ECO Fountain Pen – White Rose Gold with rose gold accents on a white background
      TWSBI ECO Fountain Pen – White Rose Gold with rose gold accents on a white background
      TWSBI ECO Piston Filler Fountain Pen – White Rose Gold
      $54.00
      TWSBI VAC700R Fountain Pen – Iris on a white background
      TWSBI VAC700R Fountain Pen – Iris, showing the cap and body on a white background
      TWSBI VAC700R Vacuum Filler Fountain Pen – "Iris" Rainbow
      $85.00
      TWSBI Diamond 580 Fountain Pen – Clear on a white background
      TWSBI Diamond 580 Fountain Pen – Clear, showing the cap and body on a white background
      TWSBI Diamond 580 Piston Filler Fountain Pen – Clear
      $58.00
      TWSBI Diamond Mini Fountain Pen – Classic on a white background
      TWSBI Diamond Mini Fountain Pen – Classic, showing the body and cap on a white background
      TWSBI Diamond Mini Piston Filler Fountain Pen – Classic
      $55.00
      TWSBI VAC20A Ink Bottle
      TWSBI VAC20A INK BOTTLE
      TWSBI VAC20A Ink Bottle
      $20.00
      TWSBI 1791 PRAIRIE GREEN INK 18ML on a white background
      TWSBI 1791 Prairie Green Ink 18 ml
      $10.00
      TWSBI Vac700R Fountain Pen - Clear on a white background
      TWSBI Vac700R Fountain Pen - Clear, showing the cap and body on a white background
      TWSBI VAC700R Vacuum Filler Fountain Pen – Clear
      $69.00

      Authentic TWSBI: Precision Engineering from Taiwan


      TWSBI represents the pinnacle of Taiwanese manufacturing, born from Ta Shin Precision's 50 years of experience in high-tech plastics and metals. At Pen & Tool, we curate only the flagship Made in Taiwan models—pens celebrated for their incredible ink capacity, airtight seals, and "Demonstrator" designs that showcase the beauty of your fountain pen ink.

      The Core Taiwanese Lineup

      • TWSBI ECO: The most popular piston-filler in the world. Engineered in Taiwan for a "leak-proof" experience, featuring a secure hexagonal screw-cap and a high-capacity barrel.
      • TWSBI Diamond 580 & 580ALR: The professional's choice. Featuring a diamond-faceted barrel and aluminum internals (ALR), these pens utilize a larger #5 JoWo nib for a smooth, consistent writing flow.
      • TWSBI Vac700R: The ultimate high-capacity vacuum filler. Designed with an integrated shut-off valve, this Taiwan-made powerhouse is the gold standard for travel and long-form writing sessions.
      • TWSBI Diamond Mini: A pocket-sized version of the 580, featuring a threaded end for secure posting—perfect for those who need a compact but full-featured piston pen.

      The "Demonstrator" Advantage


      TWSBI pens are famous for being Demonstrators—completely transparent bodies that allow you to see the internal filling mechanism in action. Because these models are produced at the Ta Shin factory in Taiwan, they feature superior clarity and crack-resistance compared to mass-produced alternatives.

      User-Serviceable Engineering


      Every TWSBI in our collection is designed to last a lifetime. In keeping with the brand’s commitment to sustainability, your pen arrives with a traditional wrench and silicone grease. This allows you to perform your own maintenance, from lubricating the piston seal to a complete deep-clean of the ink reservoir.