Ready-to-use modeling clay. Air-drying. After drying, the clay may undergo changes in color and size. Once opened, wrap the clay in plastic film, removing all air, and store in a plastic bag, keeping it sealed to prevent drying out. To better preserve the pieces after drying, apply a layer of varnish. Non-toxic. Environmentally friendly natural clay. Composition: PVA resin, water, starch, plasticizers, additives, preservatives, and pigments. Non-edible product.