Use these metallics on light or dark gloss paper, memory glass dominoes, metal foil, shrink plastic and other non-porous surfaces. Use with alcohol inks for polished effects. Recommended for ages 18 and up. This package contains Tim Holtz Adirondack Alcohol Ink Metallic Mixatives, two .5 fluid ounces of metallic luminous, multi-surface inks - Gold & Silver. Acid free. Conforms to ASTM D 4236. Made in USA.