Permoplast Non-Hardening Modeling Clay is America's original non-hardening modeling clay. This product is odorless, nontoxic, and clean to use. This plastic clay can be recused when stored airtight. This non-hardening clay is great for developing small motor skills and hand/eye coordination.Details:Dries green1 lb. (0.45 kg) box weight3 boxes of clayCan be reused when stored airtightThis product is odorless, nontoxic, and clean to useFor ages 6 and up