The MODULON wood block toy has 16 pieces and is stored perfectly in a black painted wood box. Fitz and Su brought back the MODULON for their love of the Golden Section. The Modulon is a cube divided into the dimensions of the golden section which is achieved with a geometric construction that has a divisor of approximately .618. The shorter part of a line segment has the same relationship to the longer part to the whole. The 16 building blocks of 7 different masses can be arranged to form many different proportions according to the harmonic principle. Blocks are built with strict Swiss quality standards, the highest precision, durability, and eco-friendly wood and paint.