Motorized Robotic ArmThe Vex Robotics Motorized Robotic Arm features 2 alternate builds and motorized robotic actions, challenging your children in a fun, educational activity that lets them exercise their creativity while learning basic STEM principles. This brilliant robotic arm moves up and down and opens and closes the jaws of the gripper. Have you ever wondered how industrial robots work? You know, the kind of robots that work on assembly lines building other complex