GraviTrax - Expansion Tunnels

GraviTrax Expansion Set: Tunnels
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?
GraviTrax Tunnel extension is a great tunnel system and provides on the ball track for many moments of surprise. Especially if the tunnels are directly connected to the switch therefore spectators can not calculate where the ball will be next. With the tunnel system, the ball track has not only got roofed components for curves and straights, but also branches, two half loops and four new rails.
Includes 4 x tunnel curves, 2 x tunnel straight lines, 2 x tunnel switches. 2 x vertical U-turns, 2 x Bernoulli rails, 1 x O-rail upwards, 1 x O-rail downwards and 2 x catch baskets.