Modeling Clay AssortmentEasy-to-use reusable non-hardening clay that comes in assorted colors created from vegetable-based dyes. The clay makes solid, durable forms without need for baking in an oven or firing in a kiln. Smoother, finer and less sticky than traditional clay. Softens easily with water. Color(s): Assorted Neon; Age Recommendation: Ages 4 and Up.