Sakura® Pigma® Micron® Black Permanent Pens - 0.70 mm (12)
Patented black Pigma ink is waterproof, nontoxic, chemical-resistant, quick-drying, pH-neutral, and fade-proof against sunlight or UV light. It will not feather or bleed through even the thinnest papers and is smear-proof once it has dried.
Nonrefillable pens will not clog or dry out like most mechanical pens. Heavy-handed users will love the durability of the larger nib that provides dark pen strokes that last.
These pens are an excellent choice for fabric design. When used on natural, untreated, 100%% cotton fabric, the ink is permanent and washable.