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Colored wires and springs assist you build the sound changer and learn the whole theory easily
For ages four and up
There are 13 separate parts accessories
3+ with adult supervision
water wheel and small plant basin
GraviTrax Pro Extension Splitter Trikes & Wagons Colored wires and springs assistSplit the directions of the marbles with the Splitter. See if the marbles have enough speed to roll across the trap door. If they roll too slow, the marbles will fall to awaiting tracks below and will go in different directions. Combine this accessory with the GraviTrax Pro Starter Set. This set includes 1x Splitter BaseThis STEM system [Science, Technology, Engineering and Maths] is an ideal one to teach kids about gravity, magnetism, kinetic energy
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