Sakura Pigma Micron Pen - Size 01 - 0.25 mm - Black | JetPens
Amazon.com: Sakura Pigma Micron pens 12 Fineliner Drawing Set (05 Assorted Color with Black Brush, 08, 01 & 05)
Pigma Micron Ink Pen by Sakura – Little Otsu
Amazon.com: SAKURA Pigma Micron Fineliner Pens - Archival Black and Colored Ink Pens - Pens for Writing, Drawing, or Journaling - Assorted Point Sizes - 73 Pack with Container