1. Material: plastic 2. Suitable age: 8 years old and above 3. Mechanical power principle, no motor, battery and other control, by the water to provide kinetic energy 4. 360 degrees rotatable console, smooth operation 5. Parts can be put together and dismantled, to develop children hands-on ability and logical thinking ability 6. Manually operated joints, through the three lever control engineering vehicle joint activities 7. Parents can work together with their children to enhance parent-child relationship