Gravitrax Expansion Building Get with the beat

Get with the beat

and the ratchet and pawl

When a new tile is turned over

The sound is produced by a hand-turned wheel rubbing against the strings

Smooth low temperature delivers heat evenly without overheating and drying out

Gravitrax Expansion Building Get with the beatTake your track to new heights with the GraviTrax Building Expansion set! The Building Expansion offers over 25 additional elements to expand your track vertically. Youll increase the action when increasing the height of your run. Experiment with the combination of height tiles, base plates, freefalls, switches and even another level. See how high you can build your track before getting the marbles to the finish. GraviTrax Starter Set required What