Easy to install, Cross Rollerball Refills are available for all Cross Selectip and Ion Rollerball Pens in a variety of colours and width options. Rollerball Refill. Also known as Felt-Tip, Flair or Marker, Porous-Point Refills create a line that is darker and bolder than a Ballpoint or Rollerball, yet still crisp and precise.
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