Mont Marte White Air Hardening Modeling Clay, 2kg (4.4lb). Approximate 24 Hour Drying Time. Easy to Smooth and Knead. Suitable for a Variety of Sculpting Projects.The clay is air hardening, eliminating the need for baking or firing in a kiln. It dries and hardens on its own over approximately 24 hours. It is easy to smooth and knead, making it ideal for sculpting and molding into various shapes and forms. The white color of the clay allows for easy painting and customization after drying, providing artists with endless creative possibilities. Mont Marte Air Hardening Modeling Clay is suitable for a variety of