Kaweco Converter - International Standard KUM The Kaweco Calligraphy Set is

The Kaweco Calligraphy Set is a perfect gift for any aspiring or expert calligraphers alike

This converter is not compatible with the Kaweco Sport

Compatible with the Kaweco AL Special Clip (sold separately)

This brass version is the heaviest finish

Sailor Professional Gear Slim Fountain Pen - Black

Kaweco Converter - International Standard KUM The Kaweco Calligraphy Set isKaweco Converter International Standard Compatible with any pen that uses an international standard sized converter or cartridge. This converter is not compatible with the Kaweco Sport, or Al Sport. Converter colour (piston mechanism) may come in a different colour other then black.