king of clayking of clay This is a safe and secure clay made by a manufacturer of school supplies. The No. 1 clay for creating delicate shapes. Doesn't stick to your hands, so your room won't get dirty. Clay sticks well to itself. Doesn't stick to your hands, reducing odors. Less likely to crack after drying. Stretches well even when mixed with paint. Can also be used with core materials such as plastic bottles and cans. Sticks well to dry clay. Approximately