... 2)nickel,black,silver,gold 3)SGS certified Features of magnet neocube:1)Mateials: NdFeb magnet2)Colors: nickel, black,silver ... :216 pcs/set4) Packing:Round steel box packing1. The magnet neocube has high remanence, high coercive force, high energy ... such as Motor, sensors, loudspeaker, windmill, Auto, National defence, Speaker, Computer, Biology project, Medical treatment, Instrument and Meter etc.We ...