1.Plastic 2.import 3.Easy to read: the tire pressure monitoring system provides a largesize screen, the tire pressure monitoring system adopts precision wireless transmission sensor, and gives the accurate reading. The display can help you better monitor the condition of the tires. 4.Various applications: the monitoring of the temperature and pressure with high accuracy with strong antiinference, display for 2 tires simultaneously. Dynamically monitors all tire pressure, time and temperature, fuel consumption, improves fuel efficiency. Suitable for all kind of two wheels vehicle like motorbike, bicycle, bike, motorcycle, mountain bike, adult children's bike, electromobile, twowheel vehicles and so on. 5.Allweather adoption: comes with 2 external sensors and sealed against dust, water and snow, easy installation and receive realtime signals. Magnetic charging. 6.Accuracy: this tire pressure monitoring system equipped with 2 advanced external sensors, which are low power consumption and have a long working life. Compact, lightweight, high accuracy of sensing tire pressure, and easy installation.