Смотрите, что пишет фирма про эти магниты:
"Two of these magnets close together can create an almost unbelievable magnetic field that can be very dangerous. Of all the unique items we offer for sale, we consider these two items the most dangerous of all. Our normal packing & shipping personnel refuse to package these magnets - our engineers have to do it. This is no joke and we cannot stress it strongly enough - that you must be extremely careful - and know what you're doing with these magnets. Take Note: Two of the 3" x 1" disc magnets can very easily break your arm if they get out of control." -100 баксов за удовольствие сломать руку
Я маленькими (1 инч) магнитиками палец случайно отшиб, а про такие даже представить боюсь...
