VEX Robotics Robotic Arm Construction SetDetails: Have you ever wondered how industrial robots work? You know, the kind of robots that work on assembly lines building other complex pieces of machinery? Now you can unlock the mystery behind these sophisticated robots by building one of your own! This construction kit challenges you to not only Build Genius but also build a fully functional VEX Robotic Arm at the same time. With four points of motion, you can use each control knob to pick up