Material: The TPMS valve stem is made of rubber with stable characteristics and high reliability, which is durable and has a long service life. Size: the length of the valve stem of the tire pressure monitoring sensor is 6cm with a 1.2cm thread, the diameter of the cap is 1cm, the precise size makes it able to fit your tires well and won't get lost easily . Convenience Kit: The tpms tire pressure sensor valve Stem kit includes valve stem core (already installed), valve stem cap & mounting screw that secures the valve stem to the sensor. Easy Operation: It is easy to install the tire sensor TPMS valve stem, no modification is required, it can directly replace your old, you can install it by yourself or ask for a professional method. Increase Safety: The sensor valve stem is an upgraded valve equipped with an overpressure release valve; It can automatically open or close the valve vent hole to ensure your car tire is under the correct pressure. With this tire pressure sensor, your driving will be safer.