Crayola Modeling Play is a non-drying, non-hardening modeling material with a firm, workable consistency, perfect for kids. The oil-based clay repels water and can be used multiple times, so your children’s creative can flourish as they develop a sense of form and detail. This package includes four individually wrapped packages of clay in a range of bright colors. Details:NontoxicNon-hardening Recommended for ages 6 and upContents:4 oz. red4 oz. blue4 oz. yellow4 oz. green