Selected iron

Selected iron is a quest item used in the  Animal Magnetism quest. The player must give the  Witch in  Draynor Manor five regular  iron bars and she will then return the bar that is most suitable for turning into a  bar magnet. The player must then take this bar to the mine near  Rimmington and hit the bar with a  hammer, making sure you are facing in the north direction, to turn it into a bar magnet. You get some  Smithing  experience for this.