12 pack, assorted coloured chalk sticks. Non-toxic. Crayola Coloured Art Chalks come in brilliant colours and can be used on paper and surfaces other than chalkboards. Strong, consistent formula resists breaking, scratching or skipping. Writes smoothly, erases easily from chalkboards. Includes two sticks each of: red, orange, yellow, green, blue and violet. 3-1/2" long, (83 mm).