Solar Track Ball Set Mechanical Ball Roller Set DIY Assemble 3D Mechanical Gear Engineering Solar Powered Model STEAM Science Experiment Educational Set Home Decor Toys
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1. DIY assembly: The assembling process can train a strong logical thinking ability and recover the lost concentration
2. Mechanical gear drive: Rotate through gears to realize the whole movement process
3. Solar powered: Converting light eneray into electrical energy Is green and environmentally friendly , and there is a battery-powered box that can rotate in the sunless place
Name: Solar Track Ball
1 x Solar Track Ball Set
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|Expedited Shipping||7-15 business days to Worldwide|
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