Why are STABILO EASYoriginal cartridges not transparent to show the ink level?
The STABILO EASYoriginal sets standards in terms of ergonomics and writing comfort. In addition to this, we have also done something to stop blue fingers. In contrast to conventional ink cartridges, the EASY cartridge is protected against leaks. Even a damage which would cause a conventional ink cartridge to leak completely, our ink system holds the ink in a sponge-like reservoir. This reservoir is, of course, coloured according to the ink and stays this colour even after the ink is used up completely. A transparent cartridge would therefore not help to show the ink level. More questions? Write to us!