2oz. bars (56g). Better than clay - Hardens . Oven bake 10-20 minutes at 275F (in home oven). Use Sculpey III Soft and pliable, Sculpey requires little or no conditioning. For use in creating small sculpture, jewelry and home decor. Sculpey III is baked on an oven-proof glass surface in a preheated oven. Any desired shade can be achieved by kneading together two or more colors. White lightens the tone of individual colors. Transparent gives the tone a translucent quality.