1.Tire Pressure Indicator 2.professional supplier 3.high quality 4.leading information 5.accept OEM check.... 1.safety concern 2.easy to install 3.simple indication 4.extend tire life 5.auto parts1.safety concern,easy to install,simple indication,extend tire life.2.auto parts3.material is plastic SIMILAR PRODUCT:material is brass: FS0851 plastic material Tire Pressure Indicator Cap,auto parts