Crayola Dough is a soft non-toxic modeling material developed for early learning applications. Its smooth consistency is easy for small hands to manipulate. Plus it s crumble-free. Crayola Dough is packed in sturdy airtight storage buckets that keep it soft and ready to use. The dough should be returned to its container after use to prevent drying. To soften it slowly add a few drops of water and knead. Crayola Dough washes easily from most surfaces.