Circle magnets - outdoor & car magnets 30 Mil can be preferred for brand building in all season because it remains in good shape. This magnet may not attract thousand eyes at the same time like a gigantic billboard in the city junction. However, it will definitely grab few hushed or interested glances when a car is driving through the city. Advertisers who are very keen to do brand building at low investment and fewer efforts can always employ it for the purpose.