- This kit includes 2 styles of windmill blades and a gear box with 3 different gear ratios to fit all wind conditions.
- The windmill blades are adjustable by angle and quantity to make best use of wind to make the LED bright and charge the battery as fast as possible.
- This kit can help children explore the power of wind and store the produced energy to activate the models they build up.
- This kit includes a 40-page color manual with illustrations of 2 windmills, 6 model vehicles and various experiments.
- Compete with your friends to see whose windmill charges up the rechargeable battery to activate the model first.
Contents: 133 pcs per set.
Item size: 370 X 80 X 290 mm