▼ magnetic force minimum ▼ Do not purchase thinking that this is a magnet. It seems better to think that it is "magnetic." It can not stay attached to the iron plate with this magnet alone. I tried to use it to post a note paper, but it is in vain that it can not be diverted to other uses. Even if it is placed on polystyrene foam and floated on water, it will not replace the compass.