Construct and Create - With so many options to choose from this collection of cool creative contraptions have something for anybody looking to bring out their inner inventor, from solar to saltwater powered and everything in between. The educational and electric mix of machine will be sure to keep you and your family entertained. With the wearable Cyborg Han powered by water alone you get eight adjustment modules dynamically move liquid between one another, using the pressure changes to mimic muscle movements of the human hand.