The evolution of the iron from the past to the present. From the original iron heating with charcoal. Metal is heavy. To use it, open the top cover to recharge batteries that caught fire and went down. For heating and during use to lift iron to rub the leaf is always fresh. To the surface of iron or non-slip grip and have to fill the battery to control the temperature of the iron is too hot. The cause of the discomfort. And sometimes messy ashes stain your clothes.