Nontoxic. Crayola chalk - solid, consistent color in a strong stick that resists breaking! Quality Guarantee: We guarantee the quality of all Crayola products. If this product does not perform properly, please contact us. In the USA and Canada, call 1-800-Crayola (800-272-9652), weekdays 9 am-4 pm ET. Safety Information: ACMI: AP - Art & Creative Materials Institute Certified. Conforms to ASTM D 4236. All Crayola art materials are nontoxic. crayola.com. Contents and colors may vary. Made in China.