This box contains 8 individually bagged 1-Sensors with Rubber Press-in Valve. The 1-Sensor is a programmable universal TPMS sensor. It features a combined frequency of 315MHz and 433MHz with rubber valve stems. The press release button allows for rubber or metal valve stems to be replaced interchangeably. The 1-Sensor is reprogrammable, 98% compatible with OE sensors, and meets SAE standards J1205 and J1206. Replacement valve stems are available for purchase in rubber or metal.