The Sakura Pigma Micron 01 0.25mm black fineliner is the precision marker preferred by illustrators, architects, and artists worldwide. Equipped with a 0.25mm metal needle tip and filled with patented Pigma Ink with deep black pigmentation, it is water-resistant, lightfast, and does not bleed through paper. The ultra-fine line allows for meticulous detail and precise, flawless calligraphy. Indispensable for technical drawing, illustration, bullet journaling, and archival documents.