... .. 4)5mm,6mm,7mm,8mm,9mm 5)SGS&CE&CPSIA rainbow color neocube,magnet cube,magcube,magnet ball,magnet sphere,buckyball,nanodots ... .03mm) Coating Nickel-Copper-Nickel (NiCuNi) coating with silver,gold, black nickel and new color Blue/green/Red/pink/ etc.Magnetic power ... . DIY making Jewelry3. Use them on the Refrigerator, White Boards, or make desk art and impress your coworkers.4. The possibilities ...