The antenna is outside of a soft rubber material. Below you will find a simple metal spiral antenna, which is mounted on cheap plastic. None of the screws has reasonable fit to the threads on the car. The antenna was about something. Even when the antenna Unscrew stuck on the car the thread. I had to remove it with pliers. When the screws trial in the antenna securely tightened, the plastic has turned in rubber coat. Overall, the antenna acts processed cheap and is not recommended in my view. I would recommend this quiet a few euros to spend more.