Smoother, brighter and less flaking for solid color coverage! Recommended for children ages 3 and up. Soy oil, a renewable resource, is turned into wax for these crayons. Soy wax decomposes much more quickly than paraffin wax. Certified AP nontoxic. Prang Art & Drafting Supplies part of a large selection of office supplies. Prang(R) Soy Crayons, Tuck Box, Box Of 8 is one of many Crayons available through Office Depot. Made by Prang.