Crayola Modeling Clay is a versatile, non-hardening clay that is completely reusable. It stays soft even after molding, ensuring it can keep up with your child's imagination. It's designed with a wax and oil based formula, which makes it water-resistant. Plus, Crayola Clay is created with non-toxic materials so parents don't have to worry! Let imaginations take shape with this reusable, non-drying clay in classic colors! Makes a great stocking stuffer or everyday gift for kids. 4.8 oz Pack. Clay/Pottery Type: Modeling; Color(s): Assorted; Age Recommendation: Ages 4 and Up; Color Assortment: Blue; Green; Light Blue; Orange; Pink; Purple; Red; Yellow.