Our selection of 36 brilliant colors are made with water-soluble pigments. Once the pigments are activated with water and a paintbrush, an effect similar to traditional watercolors can be achieved. And Watercolor Pencils are kind to Mother Earth! Unlike markers, whose usefulness is short term because they dry up and run out of ink, yet all that discarded plastic has a long-term impact on the environment. Consider replacing your plastic markers and gel pens with this natural & environmentally sustainable alternative. Includes a pencil sharpener and paintbrush in a handy canvas wrap. case of 6