Ravensburger Extension Kit Tunnel

Let the balls disappear! With this set, you create the element of surprise on your track. Combine the tunnels, tracks and base plates with your GraviTrax starter set and get even more combination and acceleration options. Can you keep an eye on the ball as it rolls through the tunnels? You can find more information at Gravitrax.com. Contents: Instructions, 2 base plates, 4 curved tunnels, 2 straight tunnel pieces, 2 tunnel switches, 2 vertical U-turns, 2 Bernoulli plastic tracks , 2 O-plastic tracks , and 2 catchers. Can only be used in conjunction with a GraviTrax® starter set. From age 8 onwards.