stainless steel tube tungsten carbide ball black German ink minimum 400 metres writing distance.Please note: A good rollerball has extra smooth, free-flowing ink, which provides an effortless writing experience. It is for this reason that they have a limited writing distance, when compared with the thicker, stickier ink of a ball pen. All Alex Varga rollerball pens, with the exception of AV-19011, are supplied with a complimentary spare refill packed inside the presentation box
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