$39.90 SGD $59.90 SGD
Demonstrates the power of two by progressively of doubling the previous piece, starting with a two centimeter cube.
That cube is then doubled with a second cube.
Those two cubes are then doubled with a 4 x 2 x 2 centimeter prism, eventually creating an 8 centimeter cube.
The seven blocks are housed in a hinged wooden box with a wooden cover.