Bar Magnet - Pack of 12 offering bar magnet 3"(75 mm)pack of four . The north pole of a magnet is defined as the pole that , when the magnet is freely suspended , points towards the earth north magnetic pole in the arctic. Since opposite poles (north and south) attract , the north magnetic pole is actually the south pole of the earth magnetic field. Beware of duplicate , low quality products.Beware of duplicate,low quality products.