... popular magnetic toy .It is also called Buckyball,Neomagnet,Neocube, The neocube, Magnet ball, magnet sphere ,Nanodots, Cybercube,Magcube,QQMag ... models . Certificate Met : CE Certificate. Size : D2mm,D3mm,D4mm,D5mm,D6mm,D7mm,D8mm,D9mm,D10mm.. ...Tolerance : +/-0.02mm, + ... N40, N42, N45 … …Coating : Nickel, Black Nickel , Silver , Gold , Blue, and RedPackage: we also could supply other kinds of package ...