Magnetic Poles of Refrigerator Magnets: visualizing the invisible with color gradient magnetic viewing film- the secrets of refrigerator magnets revealed: strips of north and south poles. Compared to the two poles at the end of the horseshoe magnet 🧲 the collection of parallel strips seen in the fridge magnet is a special orientation of the magnetic poles called a Halbach array, which allows for the combination of poles to create a strong magnetic field on one side and a very weak one on the ot