Kaweco Mini Converter Foldable Specially developed converter for pocket fountain pens. The converter is plugged into the front part as an alternative to ink cartridges. Like a syringe, the ink is absorbed directly from the ink bottle. Therefore, ink cartridges will become obsolete and plastic waste will be reduced. Thanks to the clever folding mechanism of the piston rod, the converter can be reduced in size by almost 20% while holding the same ink capacity. Due to its small size, the Mini converter fits into even our smallest pocket fountain pens of the Liliput and Sport series. Length: 3.3 cm Length opened: 4.2 cm Ink - Filling capacity: 0.47 ml Suitable for: AC SPORT, AL SPORT, ART SPORT, BRASS SPORT, BRONZE SPORT, CLASSIC SPORT, DIA2, FROSTED SPORT, ICE SPORT, CALLIGRAPHY SPORT, Kaweco COLLECTION Series, LILIPUT, ORIGINAL, PERKEO, SKYLINE SPORT, SPECIAL, STEEL SPORT, STERLING SPORT, STUDENT, SUPRA