1)size is from 3mm~12mm. 2)Color: Gold, Silver, Black, Nickel,Red 3)Packing: OPP bag, Round steel box, Rectangle steel box The Magnetic Neocube is the latest popular toy and Neocube starts out as a magnetic balls, composed of 216 individual high-energy rare-earth magnets, you can create huge number of shapes and models according to your imagination by this amazing Neocube.