RoseArt Color Chalk, 16-Pieces, Assorted Colors, Packaging May Vary (CXY77) 16 pieces of colored chalk School quality Washes easily from skin and clothing Non-toxic Perfect for blackboards, sidewalks, brick walls and more! 16 pieces of assorted color chalk per box Washes easily from skin and clothing Non-toxic Perfect for blackboards, sidewalks, brick walls and more Safe for school or home use