TWSBI Piston Converter
The TWSBI Piston Converter holds less ink than its Spring converter and uses an innovative spring mechanism. A traditional piston mechanism, dip the nib, twist the piston one way to expel air and twist back to draw up ink.
- Standard international fitting
- Piston filling mechanism
- Oversize converter
Please note that this will not fit most standard international fitting pens due to the thickness of the barrel component. For use with the TWSBI Swipe.