About TWSBI Pens
Learn all about TWSBI and compare. Follow Laura's Ultimate Guide
Inspired by writing
Explore the Full Line of TWSBI Fountain Pens
Discover the world of TWSBI, where innovative engineering meets affordable luxury. Whether you're a beginner or a seasoned writer, TWSBI offers something for everyone—from the popular TWSBI ECO, known for its transparent body and piston-filling system, to the elegant Diamond 580 and the high-capacity Vac700R.
What sets TWSBI apart is their commitment to quality and transparency—literally. Most models showcase a clear barrel design, letting you admire your ink color and monitor levels at a glance. Plus, each pen comes with tools for easy disassembly and maintenance, making them a favorite among fountain pen enthusiasts.
Shop Our Best-Selling TWSBI Pens:
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TWSBI ECO – Best for beginners and daily use
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TWSBI Diamond 580ALR – Enhanced build with aluminum accents
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TWSBI Vac700R – Powerful vacuum-filling mechanism
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TWSBI Mini - Small but still powerful full fledged writer perfect for travel!
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TWSBI Swipe – Cartridge, converter, and spring converter compatible
✅ All pens are compatible with bottled ink and come in a variety of nib sizes (EF to 1.1mm stub).
Don't forget to pair your TWSBI with the following to maximize your experience:
