Prang Metallic Art Markers feature superior ink formulation that lends metallic luster to a variety of bold colors. Superb effects are achieved on dark paper, glass, wood & metal. Durable bullet tip delivers both fine & broad lines. Markers are safe for use on archival projects. Ink is washable, odorless, acid-free & won't bleed through paper. Colors include two colors: gold & silver. Certified AP nontoxic markers conform to ASTM standards.