Medium point ball pen. Tungsten carbide ball. Writes up to 2x more than other usual ball pens. Average writing length: 3000m (SGS tests 2012-2016 average writing length for black & blue cartridges). Hexagonal barrel for comfortable handling. Clear barrel for visible ink supply. Cap and plug color matches ink color. Ventilated cap compliant with ISO 11540 / BS 7272-1 standard. Accredited with NF Environment Status. 1,0mm tip gives line width of 0,32mm.