This fine-point pen features waterproof, quick drying pigmented ink for permanency and true color reproduction. Ideal for graphics, drafting, illustration or even accounting! Experience smooth, skip-free writing and crisp ink colors that leave consistent lettering and lines every time. The uniquely formulated Pigma ink has unparalleled archival quality that makes it waterproof and bleed- and fade-resistant. Designed with a 0.25 mm nib, this pen is ideal for projects that need accuracy and minute detailing.