Accessories for the marble run system. Recommended age: 8 years and up. Number of pieces: 6. Made of plastic. Playable only with a separately available starter set. Includes instructions. With the GraviTrax element Looping, thrilling action is guaranteed. How fast do the marbles need to be to defy gravity? The Looping element turns the world of marbles upside down for a brief moment. The marbles fly through the Looping at high speed, temporarily overcoming gravity. Combined with any GraviTrax starter set, the Looping element turns the marbles in the marble run upside down. How much momentum does the marble need to make it through the Looping? Ravensburger has been a staple in children's rooms in Germany and around the world for decades and is the leading provider of puzzles, games, and activity products in Europe, as well as children's and youth books in the German-speaking region. 85% of the products are manufactured in Europe and sold worldwide from there. The Ravensburger publishing house was founded in 1883. A year later, in 1884, the Ravensburger game publishing house was established. It celebrated its first milestone with the bestseller "memory." Since 2009, the company has also focused on new technologies with the establishment of the subsidiary Ravensburger Digital GmbH. It connects the classic world of games with intelligent electronics, enabling interactive learning.