Combine action and sound with this spectacular Fischertechnik marble run. Build one of the four tracks from the manual with 550 pieces, or use your own creativity to create a fantastic track. The steel balls zip across the track at lightning speed, creating beautiful sounds as they hit the sound tubes. The balls then enter the next track in spectacular fashion via the rotating funnel. Once at the bottom, use the manual chain lift to move the marbles back up. This lift can be automated with an optional add-on. Includes 3 sound tubes, 8 steel balls, and a magnetic holder. Ideal add-ons include: Motor Set XS (item 2580614), Sound and Lights (item 2580616), LED Set (item 2580613), and all other construction sets from the Dynamic line.