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Now sound comes into play! With the Marble Competition Sounds 571899 extension set, the Marble Competition models are not only expanded with great sounds through the easy installation of sound tubes, but also increases the level of competition by simultaneously serving as adjustable obstacles for the marbles. This extension generates additional surprise effects and provides even more excitement.

• SOUND ON: In the ADD On Marble Competition, the fischertechnik marble track Marble Competition models are not only enhanced with great sounds by placing sound tubes, but also promote children's spatial and logical thinking.
• EXTENSION SET: The ADD On Marble Competition Sounds set is a fischertechnik marble track extension for the Marble Competition construction set. The fun is enhanced by the sound tubes, which not only enhance the marble track, but also serve as additional obstacles for the marbles. A basic model of the Marble Competition construction set is required!
• EXTRA PORTION FUN: Through the use of the expansion, the fischertechnik Marble Competition marble track for kids is upgraded and offers a completely new playing experience for young and old!
• COOL NEW FEATURES: The tension is increased with the sound expansion thanks to the fischertechnik marble track sets and accessories for kids, enabling completely new playing experiences!
• INCLUDED: 1x ADD On Marble Competition Sound toy from fischertechnik - made in Germany, kit from 8 years.