I attached a thin, 0.3 mm metal stripe to my iPad's cover to fix it to my car's dashboard as easy as I can, without any drilling of the car. The magnet holder stripe was fixed to the car by using 3M's VHB tape.I used 10x8x30 mm neodym magnets to the final model. They are strong enough to hold the 10 inch iPad in place in case of the most extreme conditions.