Pigma Micron Pen Set Of 6 Black-in Sizes 005 (.20Mm), 01 (.25Mm), 02 (.30Mm), 03 (.35Mm), 05 (.45Mm) And 08 (.50Mm): Arizona State University
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Amazon.com: SAKURA Pigma Micron Fineliner Pens - Archival Black Ink Pens - Pens for Writing, Drawing, or Journaling - Black Colored Ink - 08 Point Size - 6 Pack
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