This neocube is for the following details information:

1. size:  5mm
2. material: NdFeB magnets
3. Grade:  N35
4. coating:  black nickle 
5.  216pcs of magnets sphere is for one set
6. Tin box package.
7.  Gross weight:  150g/set ,  100sets in one carton,  20kgs/ctn