Sets come with three totally reusable coloring boards and a water pen. Printed like pages in a coloring book but instead of crayons, use the water pen to fill in each area with vibrant color. When it fades away you are ready to do it again. An amazingly motivating tool to get children to practice their coloring skills. No waxy crayons to lose, break or melt. Perfect, small no mess, travel activity for young children.