GraviTrax Tunnels Expansion Set.
Create the element of surprise with the Gravitrax Tunnels Expansion set! Use the tunnels to hide the marbles as they travel through your track. Combine the tunnels with your Gravitrax Starter Set for added mystery to your track. Will you be able to keep your eye on the marble as it rolls through the tunnels?
Includes:
- 2 base plates
- 4 curved tunnels
- 2 straight tunnels
- 2 tunnel switches
- 2 vertical U-turns
- 2 Bernoulli plastic tracks
- 2 O-shaped plastic tracks
- 2 catchers
Only for use with the Gravitrax Starter Set