Gravitrax Expansion Building When a new tile is

When a new tile is turned over

and on listening to our loyal customers

the perfect explorer's tool

and the ratchet and pawl

Since putting these models together is so easy

Gravitrax Expansion Building When a new tile isTake 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