1)Neocube,nanodots,buckyballs,magnet balls 2)Nickel,silver,gold,black,red, ... 3)4mm,5mm,6mm,7mm SGS/CE/CPSIA 4)N35 neocube,magnet cube,magcube,magnet balls,magnet sphere,buckyball,nanodots is ... away from younger children and pets.Main specs of our neocube:Grade: NdFeB rare earth material N35Diameter: 4.8mm,5mm,6mm ...