... )5mm,6mm,7mm,8mm,9mm 5)SGS&CE&CPSIA rainbow color neocube,magnet cube,magcube,magnet ball,magnet sphere,buckyball,nanodots ... -Copper-Nickel (NiCuNi) coating with silver,gold, black nickel and new color Blue/green/Red/pink/ etc.Magnetic power(N35grade):5mm 5000 ...