... magnets are a relatively popular collectable object.The first magnets used were common cylindrical or ... electromagnetism is used to generate the magnets. The polepole distance is on the order of 5mm, but varies ... could be done if only you have the ideas, because it could be customized accordingly, whatever shapes, ... FEDEX,or TNT ,it will takes 3-7 work days; If you choose EMS ,it will takes 10-20 work ...