-The paint is in the crayon! Watercolor art for young artists is easy to do. Just add water using the included paintbrush to instantly mix these gorgeous, bright colors. These watercolor crayons have a triangular shape, which makes them easy for small fingers to grip, and have a smooth texture with no waxy build-up, resulting in brilliant hues. Crayons are non-toxic, conform to ASTM D-4236, and are acid-free. 15 colors and paintbrush included.