This is the most popular set in the Scalino series. I purchased it used, and the blocks with the brand name engraved on them and the marbles are missing. This is intended for those who are looking to add to their existing set. It includes a good balance of waterfall and varied slope pieces, as well as building block parts. You can also play with it in combination with other 4cm base unit blocks, such as: * Albisbrunn blocks * HABA blocks