This 36 pack of colored chalk is perfect for school or home use. Can be used on sidewalks or chalk boards for learning. Each box comes four of the following pastel colors: white, blue, pink, green, yellow and pink. Comes on a hanging box with UPC. Non-toxic, conforms to ASTM-D4236 and is not for children's under 3. Each stick measures 2 3/4" x 1/4"