Prang metallic markers bring sheen and luster to all works of art. These markers work well on many surfaces including black paper, metal, wood, plastic, leather and glass. Markers are acid free and safe for scrapbooking. Markers are light resistant and odor free. Markers have bright, vivid metallic colors with a smooth laydown. AP certified, non-toxic. Each pack includes 2 markers: 1 silver and one gold.