This puzzle was invented by a Danish mathematician, Piet Hein in 1936.There are 240 different ways to build a solid CUBE with those 7 unique pieces. You can build different thing by The Hidden Cube puzzle and also exercise your logical thinking and sense of dimension. This puzzle combined with 7 components, the basic block consists 3 small cubes. The remaining blocks are based on that.
Material: Rubber Wood
1x The Hidden Cube