TWSBI Piston Ink Converter

This TWSBI Piston Converter is a purpose-built, twist-style converter designed specifically for the TWSBI SWIPE fountain pen. Simple, reliable, and refreshingly honest in its intentions, it allows you to enjoy bottled ink with smooth control and minimal fuss—exactly as a converter should.

Although the opening follows the standard international size, the overall diameter is deliberately larger, meaning this converter fits the SWIPE and only the SWIPE. Think of it less as being fussy and more as being properly committed. The twist piston mechanism offers consistent ink draw and makes cleaning straightforward, which your future self will quietly appreciate.

Made by TWSBI, a brand born from decades of precision manufacturing under Ta Shin Precision, this converter reflects TWSBI’s long-held belief that writing instruments should be practical, maintainable, and genuinely enjoyable to use.

Why You’ll Love It

• Made for the SWIPE, Not “Almost” Everything Else: Designed exclusively to fit the TWSBI SWIPE perfectly.

• Smooth, Controlled Filling: The twist-style piston offers reliable ink draw and easy cleaning.

• Bottled Ink Freedom: A simple upgrade that opens the door to the full world of fountain pen inks.

Details

• Type: Converter designed for the TWSBI SWIPE pens
  
• Ink Capacity: 1.5ml
  
• Item Weight: 5g
  
• Material: Plastic
  
• Country of Origin: Taiwan