The combination options of the Kullerbu play system are as colorful and varied as the play system itself: the Kullerbu tracks can be flexibly combined. This encourages the imagination and creativity of little Kullerbu builders aged between 2 and 8 years, and ensures even more variety when playing. If the track needs to grow upwards or in length then you generally need additional "construction material" in the form of pillars, straight sections, curves and connecting elements. All this is included in the practical Kullerbu expansion sets. This is an expansion set for the Kullberbu track system. It allows for more track sections to be connected together. These floor connectors make a great compliment to Expansion Set #300851, Straight Tracks and Curves (sold separately). Includes 8 connectors. Please Note: This set is for use with track that lays flat on the ground and cannot be used to connect elevated track. For elevated track options, look to our Connectors & Base set #300849 which is compatible with our #300850 columns. This set is made in China.