Item Type: DIY Solar Power Science Car Material: Composite Wood + Electronic Components Battery: 2 x AA Battery (Not Included) 1Electric Solar Power Car Model: The experimental principle of this science car model is that this solar car model can gain electricity by the solar panels installed on the car. 2Install Solar Panel: The solar panel receives solar radiation energy and converts it into electrical energy so that the generator of the car can rotate to drive the rotation of the wheels, and the car can move forward. 3Improve Kid's Development: Fit for kid's early development. Since this solar car model is funny and needs to be assembled by users, it can stimulate children's hand on ability and motivate their passion for science. 4Quality Material: The DIY solar power science car model is made of wood and electronic component. It is very firm so that children can concentrate on creating their own models. 5Perfect Gift: Characterized by good shape and fine craftsmanship, which make this solar car model durable and can be a marvelous gift for science lovers, not easy to damage. 3 x Cable Tie 1 x White Glue 1 x Fixing Clip 2 x Battery Box 2 x Solar Panel 1 x Motor 4 x Wheel 1 x Screwdriver 2 x Rubber Band 2 x Iron Shaft 6 x Double Sided Tape 4 x Iron Shaft Fixing Sleeve 1 x Pulley 6 x Heat Shrinkable Tube 1 x Screw 1 x Motor Wheel 1 x Wood Block 2 x Triangular Block 3 x Square Wood Strip 3 x Square Wood Chip 1 x Wooden Stick