As the magnets have strong attraction and we will use the spacer to apart the magnets each other in case someone will be hurt when take it out. 

Then, they will be packed in a white box of pieces each, several boxes to a carton.(Carton size : 36*27*15CM) Or according to your requirement to packing. 

+By Air: If the goods will be shipped by air, all the magnetic should be degaussed and we will use Iron sheet to shield.

+By Sea: If the goods will be shipped by sea, all of the carton will be on pallet to avoid the loss of goods during transport.