... design following your iamginaton As a toy, Neo cube brings you lots of funs and imagination, ... nameN35 Magnetic Balls With 5mmBrand nameWinchoiceMaterialNeodymium, rare earth materialTolerance5+0/-0.1 mmFeturesinc, Copper+Nickel, Epoxy, Gold, Silver, ... Axial Magnetizing, Radial Magnetizing, Quadrupole Magnetizing, Octupole Magnetizing ColorsNickel (silver), black, gold, blue, red, green, orange, white, ...