Nontoxic. Preferred by teachers! Contents and colors may vary. 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. crayola.com. Safety Information: ACMI: AP - Art & Creative Materials Institute Certified. Conforms to ASTM D 4236. All Crayola art materials are nontoxic. Meets performance standard ANSI Z356.1. crayola.com. Made in USA.