Ballograf Medium Pen Refill
Ballograf
These tips are produced from Japanese stainless steel and the balls are made from the extremely dense tungsten carbide. In the back of each cartridge is a small amount of fat which counteracts the ink to dry out even if the pen is left unused for a longer period of time.
Each cartridge writes 8000 meters and is suitable for all Ballograf Pens except Ballograf Pocket.
