Elite Montessori Power of 2 Cubes

Demonstrates the power of two by progressively 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.
A wooden box with a lid containing 7 painted wooden cubes: 3 yellow cubes, 2 green cubes and 2 white cubes. The box is hinged and opens out to display the cubes.