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This construction kit challenges you to not only Build Genius™, but also build a pull back VEX® Robotics Single Gear Racer™ at the same time! This Single Gear Racer teaches you about how machines convert potential energy into kinetic energy, while the multiple gear ratios teach you about the fundamental principles behind speed and torque. Pull back and release the fun with the VEX® Robotics Single Gear Racer™ by HEXBUG®.
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