For both thick and fine writing. Once dry, it will not run into water, and it has excellent water resistance based pigment ink for a long lasting vibrancy of fluorescent colors. The writing line will not discolor even when used on thermal paper, and it will not hide letters even on pressure-sensitive paper. Line thickness: Thin: 0.03 - 0.04 inches (0.8 - 1.1 mm), Thickness: 0.2 inches (4.0 mm) Eco Mark certified product, Green Purchasing Act Compliant, GPN Eco Product, uses recycled materials Sold as a set of 10 solid colors. [Features] You can write bold and fine lines with just one tie [Nib] For both bold and fine lines; [Line width] Broad line: 0.02 inches (4.0 mm) / Fine tip: 0.03 - 0.04 inches (0.8 - 1.1 mm) Ink: Water-based pigment; Once dry, it will not run into water and has excellent lightfastness Uses: For use with fax paper, non-carbon paper, and regular paper Quantity: 10 pieces
