• plastic and metal
• DIY smart car--mechanical structure is simple, it is easy to install,Smart Car
• Warm tip: dear buyer, due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item sincerely hope that you can understand! thank you!,car compatible for,DIY car
• be used to measure distance, speed,DIY smart car
• DIY car--two on battery compartment, convenient power throughout the system in a , while starting and stopping no add- is very convenient, the entire system highly integrated,DIY smart car
• Obstacle avoidance car--this car is the tachometer encoder,DIY smart car