(set of 5 Kits + 5 Service Kits) Tire Pressure Monitoring System (TPMS) Sensor Fits: Mercedes Benz - Smart

They worked just find the only dislike is they didn’t come with installation instructions. I mounted them on the rims aired them up and placed them on the car next thing we noticed they were flat. I had to break down all four tires and and place the rubber seal and metal one on the outside of the rim. If instructions was provided about the seals placement time wouldn’t been wasted .