The Thames & Kosmos Wind Power V40 STEM Experiment Kit builds a 3ft turbine to

Single-piece blade construction for improved durability and better aerodynamics. Generate electricity to charge a battery and power a small model car. Manufactured by Thames & Kosmos. New weatherproof battery box can be left outside! Includes stakes to secure the turbine to the ground. Build and experiment with a real working 3-foot tall wind turbine to learn how wind is one of the most promising sources of clean renewable energy available today.