... nickel,black,silver,gold 3)SGS certified Features of 216pcs Neo Cube:1)Mateials: NdFeb magnet2)Colors: nickel, black,silver, gold3 ... , 30SH-45SH, 30UH-40UH, 28EH-38EH, 30AH-33AH.5.High energy range from 30MGOe to 53MGOe with wonderful coercive ... , loudspeaker, windmill, Auto, National defence, Speaker, Computer, Biology project, Medical treatment, Instrument and Meter etc.We supply NdFeB buckyball ...