Sandtastic’s Air Dry Modeling Clay is a luxuriously fine, smooth and easily workable material. It’s self-hardening with exceptional plasticity. Made for the beginner-to-advanced artist, the clay is suitable for all hand-building methods and ready to use right out of the package. White, Terracotta and Black clay are available in different sizes and bulk bricks. For ages 4+, certified non-toxic, conforms to CPSIA.