Our washable chalks set includes 180 pieces of chalks in 20 colors ( orange, blue, green, pink, purple, yellow and more). The outdoor play chalks will allow your children to get outside and play, give them the opportunity to bring all kinds of artworks outside. Each chalk will give a vibrant color onto any driveway or sidewalk. The chalk can be washed on any surface, you don't have to worry about permanent messes. The colorful chalk set is a wonderful selection for kids who love creating eye-catching arts and drawing. This makes it a perfect choice for schools, summer camps, and recreation centers. Non-Toxic. Meet the US toy standard. Safety test approved. Item #: 13399