The Polyform Model Air Dry Clay is the perfect medium for different arts and craft projects. It is lightweight and easy to smooth. It has a remarkable flexibility, and can easily be sanded, drilled and carved. It dries on its own, so there is no need to use a kiln or an oven for drying. The clay becomes sturdy when completely dry. It comes in color white and is great to be painted with acrylic paints. The Model Air is available in three 2.2-pound packs.