Safety Warnings:[IMAGE]CHOKING HAZARD - Small parts. Not for children under 3 yrs. This Green Science Windmill Generator is an enjoyable and interactive kit, which will guide the user through the design and build of a windmill generator. The movement of wind will turn the windmill and power an LED light. Building this amazing generator powered by wind also increases awareness of the value of using renewable free energy sources. You can help save the Planet by recycling a plastic bottle to support your wind generator.