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This replacement twist-style piston cartridge converter by TWSBI is specifically designed for the TWSBI SWIPE. While the opening is standard international size, the overall diameter of the converter is too large to fit other fountain pens besides the SWIPE.
With a history of more than 40 years of manufacturing, including producing high-end pens for other brands, Ta Shin Precision decided to start selling under their own brand, TWSBI. The name TWSBI is made up from TWS and BI. ‘TWS’ is the reversed initials of the phrase ‘San Wen Tong’, translated Hall of Three Cultures, and ‘BI’ literally means writing instrument.
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