4M Solar Mechanics</br></br>Product Description</br></br>Experiment with solar cells by building a solar powered robot or fan;This green science kit is environmentally friendly;Solar spinner and more;This kit uses repurposed materials;Experiment with solar cells by building a solar powered robot?? fan?? solar spinner and more;This green science kit is enviromentally friendly</br><br/>http://www.amazon.com/gp/product/B01LVXZ23D