This construction kit challenges you to not only Build Genius, but dos so while constructing a roller coaster style ball machine at the same time.;Once built, watch as the gears turn, the axles twist and the balls roll as you turn the knob by hand or attach a motor kit to add power to this machine!;HEXBUG believes in using the fun of robotic toys to teach kids important STEM principles through hands on learning.

• HEXBUG VEX Robotics Hook Shot Ball Machine Building Set

HEXBUG VEX Robotics Hook Shot Ball Machine Building SetHEXBUG