Assembled Size: 14 x 13 x 5.5 cm Wood Pieces: 17 pcs After assembling, put it in the sunlight and see how the motor is activated by the solar power Fun, educational, simple model. A fun demonstration of solar energy. Outstanding Home School Lesson Kit - Imagination, Education, DIY Accomplishment Fun Solar cells and motor included. Suitable for Ages 6+Enjoy the Process of Finishing this Wooden Puzzle from Wood Pieces by Yourself.EDUCATIONAL GIFT FOR YOUR KIDS: SOLAR ENERGY: Solar Power Instead of Buttery, Environment-Friendly.The Wings of the Plane Will Rotate with the Power of the Sun, which will Make your kids Have an interest in Science.ENJOY THE TIME WITH YOUR KIDS: Enjoy the Time with your Kids to Finish this Plane and Create Good Memory for your Family.