The 7-inch, short mast antenna by is the roof-mounted antenna for nissan vehicles with standard and satellite radios.This antenna mast contains a conductive copper core. So it offers the same signal support as the factory antenna, and you'll get all the channels you'd expect from a replacement antenna and still get a good look.Car wash Proof: This roof-mounted car antenna shell is flexible and wear-resistant rubber, with a copper core inside.It has a strong structure. After washing the car, you will see that it stays in its original position without damage. It is unnecessary to the antenna before washing the car.Quick and Easy Installation: No special installation or special tools are required. You can easily install the antenna in a few minutes with your hands. You only need a few minutes to screw out the original antenna and screw it into our antenna.