Black color, unburned clay is the natural modeling clay that hardens independently in the air, requires no firing process, and achieves high strength, hardness, and toughness. Its clay-like nature gives it very good plasticity for modeling, and the natural fibers present allow for drying without cracking, even with larger or solid objects. It enables modeling with very fine details and can be shaped and turned on a potter's wheel. Hands and clothing can be easily cleaned with water. A damp cloth allows for the removal of any remaining product residues from surfaces and furniture. After drying, the clay can be painted or varnished. It can also be polished, sanded, or perforated. Once fully dried, it can be made water-resistant to create sealed "non-food" containers. It retains its material properties in the original packaging for a period of at least 2 years.

Ready-to-use natural black clay. Hardens within 4 or 5 days without firing. Very smooth. No cracking during drying. Can be sealed to be water-resistant, but is not suitable for food.