New! cuboro 3 - Mental exercise with cuboro   The new book is divided in four topics or categories respectively and includes tasks with simple, difficult and surprising solutions - exciting mental exercise for professionals and for people aiming there.

Cuboro is a unique, Swiss-made wooden marble run that is the best-in-class for marble runs.  High quality, and endless in its combinations, inventor Matthias Etter's Cuboro and Cugolino marble runs truly are "marble runs for a lifetime."What it does: An ingenious building block and marble run toy from Switzerland, Cuboro allows endless combinations and designs.