Gel ink pens deliver a consistent medium line to the last stroke and reflective sheen that is distinct and adds an energetic zest to any writing, drawing or doodle. Archival-quality metallic ink writes on white or black papers, and matte or glossy surfaces. Will not smear or feather when dry. Does not bleed through most papers. Ink is waterproof, chemical-proof and fade-resistant. Meets ASTM and ACMI nontoxicity standards. Not recommended for use on fabrics intended to be washed and not evaluated for use on skin.