Build and sculpt models however you like with this conveniently air-drying modeling clay. The clay is a mineral-based formula and does not require access to a kiln, instead drying within 24 hours by resting in the open air, great for children that like to have a creative outlet. Create multicolored sculptures and models easily. Air-drying, mineral-based formula does not require a kiln or other heat source for added convenience. Dries within 24 hours. Washable design helps make cleanup simple. Comes in an assortment of colors.