Pigma Micron Pens 05 .45mm 6/Pkg - Sakura-Pigma Micron Pens 05 .45mm: Black. Archival quality ink is waterproof, chemical resistant, fade resistant, bleed free, quick drying and pH neutral. Ideal for sketching, inking, illustration and Zentangle. This package contains six 05 black micron pens with fine line tips. Conforms to ASTM D 4236. Imported.