Build a fantasy dragon, a ferocious scorpion, or a futuristic dragster! Then set them in motion! Zoobmover Power Building Set puts new life into Zoob, the award-winning building system. Fashioned after the 5 basic amino acids, Zoob pieces snap together to form joints that rotate, limbs that extend, and axles that spin. Add a full-function RC motor and now your creations really take off. 4 AA and 1 9V demo battery included.