Uni SXR-600 Jetstream Ballpoint Pen Refill vs Pelikan 4001 Fountain Pen Ink

  • Great for the Jetstream SXR-600
  • Comes in a 0.7mm
  • Pilot's V5 rollerball refill is incredible
  • Great for old-school ink
  • Medium to dark black
  • Water soluble
  • Works in any pen
  • Picky pens not a problem


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