SCULPEY III POLYMER CLAY - Sculpey III brings these unique features; the hand feel of fine modeling clay, easily kneaded by hand or tool, more versatile than clay. Regular, bright or pearl. Bakes to hardness in a 275 degree oven in 15 to 20 minutes. 2 oz. (60 ml) package. Nontoxic. Conforms to ASTM D-4236.