4M Green Science Enviro Battery & Dynamo Torch</br></br>Product Description</br></br>The cleanest energy sources you could find on earth;An amazing environmental science kit;A unique experimental kit that inspires young scientists;Turn a simple toy motor into a generator; The generator could be used as an awesome energy torch;No battery?? no pollution; Create a Green Science project</br><br/>http://www.amazon.com/gp/product/B01N2MPU4X