Apply these acrylic paint pens black to almost any surface including: Canvas, metal, pottery, wood, plastic, stone, polymer clay, ceramic, glass, porcelain, resin, paper mache, leather, Styrofoam, watercolor paper, rock, poster board and more! These paint markers turn your art projects into an enjoyable process. You will love the rich black color and durable finish. Nontoxic (although nontoxic, do not put paint in contact with food). Easy soap and water cleanup when wet or after a few hours of applying.