TWSBI - All Products

After 50 plus years as an OEM manufacturer for different global brands, TaShin Precision decided to start selling under their own brand, and thus TWSBI was born. TaShin Precision has over 50 years of experience in manufacturing high-end writing instruments engineered from plastics and metals. 

TWSBI - All Products

41 products

  • Bottled Fountain Pen Ink

    Choose bottled fountain pen ink if you want the widest color selection and a more refillable writing experience. Bottled ink works with compatible fountain pens using a converter, piston filling system, or other bottle-fill mechanism.

  • Fountain Pen Ink Cartridges

    Choose ink cartridges if you want a simple, convenient refill option with less setup and easier travel. Cartridges are a good choice for everyday writing, school, work, and anyone who wants a faster refill process.

  • Flushing your fountain pen regularly—

    especially when changing ink colors, every six weeks, or before storing the pen—is essential to prevent ink residue buildup, muddy color mixing, and clogged feeds that can lead to scratchy or inconsistent writing.