... ,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 balls,magnet sphere,buckyball,nanodots is a DIY toy Neodymium Iron Boron (NdFeB) Magnet ... spheres make a fun puzzle. These 216 rare earth magnet ...