1. Material: ABS 2. Gross weight: 490g 3. Size: 21x14x12cm 4. Power supply: Solar power / 2 x AA batteries (not included) 5. Applicable age: 6 years old and above 6. This is a DIY planetary exploration vehicle, which can help children learn the mechanical transmission structure of the vehicle model through DIY assembly and practical learning. Learn how to convert electrical energy and solar energy into mechanical energy, so that children can understand and master the knowledge that solar energy is a clean new energy from an early age.