The Construction Set M contains a selected compilation of the iconic construction elements of the Hubelino pi marble run system. With the industrial design of the compatible components, there are no limits to the imagination. With the iconic design of the construction elements your imagination knows no bounds and you can go high and high. The pillar elements provide sufficient height and with the girder elements you can bridge great distances and design stable constructions. The square base plate from Hubelino pi provides a stable foundation and offers space for creative constructions of all kinds. All construction elements are compatible with common building blocks from other manufacturers and can thus be creatively combined with your existing building blocks and theme worlds. Like all products from Hubelino, the Construction Set M is manufactured in Germany under the highest quality standards. The Hubelino pi marble run system combines daring physics tricks with creative construction fun. The fascination of constructing tricky marble run racetracks is only topped by the high speed and action-packed tricks and stunts of the steel marble. And best of all: Hubelino pi can be combined with building blocks, figures and theme worlds from other manufacturers, because Hubelino pi is fully compatible with common plug-in systems.