With the GraviTrax element Zipline,long distances and large differences in height can be overcome spectacularly. With the GraviTrax element Zipline for the Ravensburger ball track system, long distances can be mastered and different parts of the track can be linked spectacularly. A rolling ball triggers the carriage. The sled glides playfully to the target of the zipline and starts a new ball there. Great differences in height are not a hurdle for the Zipline! The new ironing system makes it possible to transport the sled more stable - for even more GraviTrax action. GraviTrax is a flexible, interactive ball track system for children aged 8 and over: With GraviTrax, children, young people and adults are not only building simple ball tracks. You create unique ball track worlds. By freely designing the ball tracks and exploring the rolling behavior of the balls, the understanding of science is strengthened and gravity can be experienced at first hand. The GraviTrax Universum contains th