For overglaze decoration on all ceramic ware including hard porclain china.
China colors are a inorganic compound, containing toxic substances. There is no danger whatsoever in using them in the orthodox way. Handle carefully, avoid prolonged contact with the skin, avoid inhaling dust. These colors contains lead or cadium or both and should not be used on food bearing surfaces, children's toys or other children's articles. It may be harmful if swallowed and should be kept out of the reach of children. If repackaged the new packages should carry the same warning.