Van Aken Claytoon Clay is a reusable, non-toxic, and colorful modeling clay that allows every child to be in charge of their own special story. Project ideas are not limited to: claymation, hands-on storytelling, clay paintings, school projects, therapy, educational activities, tactile color-mixing or molds for silicone rubber. Non-toxic, sulfur-free and reusable non-hardening clay with a smooth consistency. Made in USA. Includes 4 - 1/4 pound individually wrapped clay pieces. Neon - pink, orange, yellow and green.