Mr. Sketch Washable Markers wash off most surfaces easily. The nontoxic, water-based markers are ideal for flip charts, posters and more. Broad wedge tips keep their shape even after months of coloring. The 192-color set includes 16 black, 16 brown, 16 dark blue, 16 dark green, 16 green, 16 magenta, 16 orange, 16 peach, 16 purple, 16 red, 16 turquoise, and 16 yellow. Watercolor markers are certified AP nontoxic and conform to ASTM D-4236.