Boneware Self-Hardening Clay stays soft when wet and becomes bone hard when dry. No firing or baking is necessary. When not in use, Boneware can be kept pliable simply by covering it with a damp cloth. Boneware may be decorated with tempera, oil paints, and enamels. It’s packed moist and ready to use.

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More info: Sculpture House Boneware Self-Hardening Clay 25 lb. stone gray