Brilliant, Rich Long Lasting Colors * Won"t Smudge, Fade Or Dry Out Quickly * Full Solid Color Coverage - Removes Easily With Damp Cloth (From Non-Porous Surfaces) * Easy & Safe For Kids 3 Years & Over To Use With Supervision - Non Toxic, Water Based, Acid Free, Xylene Free, Low Odor * WARNING: Do Not Use On Porous Surfaces Including Chalk Paint & Other Painted Surfaces, Concrete, Brick, Tile & Wood etc. Always Test On Surface First!