Building robots have never been so much fun! With the 12 in 1 Solar and Hydraulic Construction Kit, you can create and transform your robot into 12 different animals and vehicles using the power of solar and water! Combining STEM (Science, Technology, Engineering & Mathematics) ideas and processes, the solar and hydraulic construction kit allows children to explore and learn the benefits of alternate energy, including the functional mechanisms involved in robotic movement and modelling. Better yet, the 12 in 1 Solar & Hydraulic Construction kit does not require batteries to operate! The modelling involved in the creation of these robots is based on the real-life characteristics and movement of animals and vehicles. Children and explore these functions and learn how they're mimicked in robotic form or kids can use their imagination to create an entirely new robot of their own. The options are endless when you're building robots!