A little comparison of the nib sizes of Sakura Pigma Micron pens 01

Sakura Pigma Micron Pen - Size 01 - 0.25 mm - 9 Color Bundle

Micron 01 size/0.25mm nib - Black - Paper Herald

Best Fineliner Pens For Drawing

Drawing Pens and Papers Compared - Jackson's Art Blog

Pen review: Sharpie Grip and Sakura Pigma Micron

Sakura Pigma Micron 003 (.15 mm nib)

Sakura Pigma Graphic and Brush Colored Colored Pen / Set — A Lot Mall

Sakura Pigma Micron PN Pen, Plastic NIB tip, Assorted Colors , 8 piece (50220)

lineartpen

Reviewed - Sakura Pigma Micron Pens » Mega Pencil