This set of four TPMS sensors is designed for use with Porsche 911 997, Boxster, Garretta, Cayenne, and Cayman models. They operate at a frequency of 433MHz and are a perfect fit for your vehicle. The sensors come in a box, making it easy to store and install them. With these sensors, you can monitor the tire pressure of your vehicle accurately. They are compatible with a range of different Porsche models, and their high-quality construction ensures that they will last for a long time. Whether you are upgrading your car or simply want to ensure that you have the best possible performance, these TPMS sensors are an excellent choice.