In plastic injection molding, granular raw material is fed into a machine where it is heated and molten plastic is injected into a stainless steel mold under high temperature and pressure. Then the temperature is lowered, and the finished product is ejected with a thimble. There is a wide range of materials and applications that can be used, as steel molds can produce complex, high-precision and diverse finished products. The relative cost of mold opening is high, so it is usually necessary to increase production to share the mold cost. Plastic injection molding can produce a wide range of items, including consumer goods, auto parts, medical devices, electronics, baby toys, and more.