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  • FriXion Knock 0.4mm Erasable Ballpoint Pen

FriXion Knock 0.4mm Erasable Ballpoint Pen

DETAILS

  • 5.6" in length
  • Erasable 0.4mm gel pen
  • Thermosensitive ink turns invisible when rubbed with the special friction "eraser"
  • Colored ink
  • Retractable
  • Ink will disappear in hot temperatures. We suggest not using these to address envelopes or on important documents.
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