Crayola-Crayon Carver Crayon Expansion Pack: Jumbo. Engrave cool messages and designs into your crayons and make your mark! Must be used with the Crayola Crayon Carver (sold separately). This 9- 1/2x7x1-1/2 inch package contains thirty-two jumbo letter tiles and six jumbo crayons. Recommended for ages 3 and up. Conforms to ASTM D4236. Non-toxic. WARNING: Choking Hazard- small parts. Not recommended for children under 3 years. Imported.