🌍 Power Up Your Play: Where Fun Meets Sustainability! Weatherproof battery box allows for outdoor experimentation. Single-piece blade construction for enhanced aerodynamics. Build a 3ft wind turbine and generate your own electricity! 2021 Toy Association's Outdoor Toy Of The Year Finalist! Includes stakes to keep your turbine grounded. Weatherproof Design Battery Powered 3ft Wind Turbine The Thames & Kosmos Wind Power V4.0 STEM Experiment Kit allows you to build a 3-foot tall wind turbine that generates electricity, teaching you about renewable energy in a hands-on way. With a weatherproof design and durable construction, this kit is perfect for outdoor use and includes everything you need to power a small model car.