Non-toxic. ACMI AP: Art & Creative Materials Institute certified. Conforms to ASTM D 4236. For more creative activities & online fun visit RoseArt.com. Facebook: Become our fan on Facebook. www.facebook.com/RoseArt. Quality Guaranteed: We guarantee the quality of all RoseArt products. If this product does not perform properly, please contact us at: Mega Brands America, Inc. Irvine, CA 92618 USA. 1-800-Crayons. www.megabrands.com. Please retain this information for future reference. Please recycle. Made in China.