These DecoColor Acrylic Paint markers work great on wood, plaster, foam, walls, paper, and terra cotta. These are perfect for school projects and other arts and crafts. This marker has a 3-way tip allowing for variety in the way it draws. Paint is acid-free, nontoxic, and permanent when dry. The colors included in this set are Violet, Yellow, Green, and Orange.Details:Includes assorted colorsChisel tip6 packs (4 pieces per pack, 24 total pieces)Opaque water based acrylic paintPermanent when dryPigmentedAcid free, NontoxicOdorlessKeep tightly capped when not in useStore markers horizontallyShake well before each useEasy clean up when wetConforms to ASTM D 4236