Set #1 of Metallic Rub-Ons for Scrapbooking, Stamping and other crafts is an exciting accent produced by Craf-T Products (makers of Decorative Chalks) and is designed to be rubbed on paper, wood, metal or clay surfaces with ones finger for a metallic finish. In this set, there are BLUE, PURPLE, COPPER, SILVER, RUBY, EMERALD, & GOLD. They are Non-Toxic and described by the manufacture as "Virtually Acid Free."