... Neocube,nanodots,buckyballs,magnet balls 2)Nickel,silver,gold,black,red,blue,green etc 3)4mm,5mm,6mm ... ,7mm SGS/CE/CPSIA 4)N35 neocube,magnet cube,magcube,magnet ... specs of our neocube:Grade: NdFeB rare earth material N35Diameter: 4.8mm,5mm,6mm,7mm,8mm( ... and shinning nickelMagnetic power(N35grade):5mm 5000-5400guass,6mm 5400-5800guass,7mm 5800-6200guassCertification approved: SGS ...