Roller Coaster Construction set Kit to Build your own Roller coasters
Design and construct your own roller coaster with this Skyrail marble
coaster set. It teaches the basic principles of mechanics and physics,
such as gravity, speed, inertia and weight. Building the coaster is really
fun, and then you get to watch the marbles race down and around
over 40' of track! Imported. Set includes 250 pieces. Picture 1 - Picture 2 - Picture 3
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