Crayola Colored Drawing Chalk in the 24 count produces strong, brilliant colors for artwork on paper and surfaces other than chalkboards, such as construction paper, cardboard, paper bags, and craft paper. It can be blended directly by applying one color over another or by rubbing with fingers, and is a great craft supply in classrooms and craft rooms. Each chalk stick is 3-1/8" long by 3/8" in diameter. Each pack includes 24 non-toxic sticks of Crayola Drawing Chalk in assorted colors.