Jar Melo's colorful chalks, especially designed for outdoor use, provide an unlimited painting experience for our little artists! It is easy to wash away or wipe off. Contains 15 colors 20 count chalks with magical bright colors. Designed for children and toddlers to grip easily, and it's non-toxic & washable. The chalks could be used on chalkboard, driveway, pavement, playground, street and wash off easily.