Add "the look" without the cost of an expensive GPS retrofit, with a replica shark fin. Our shark fins are made from high quality ABS plastic and are made to resemble the E46 "shark fin" antennas. (measuring 3.75"L x 2.75"W x 2.75"H) Our "Shark Fin" antennas are painted the exact color of your vehicle by a CERTIFIED PROFESSIONAL REFINISHER, so they blend in perfectly with your vehicles finish. 3M application adhesive is provided with each shark fin. This adhesive combined with the flat base of the fin offers excellent adhesion and is weather resistant, but not permanent, should you wish to remove the shark fin for any reason. No permanent modifications are necessary to your vehicle to make installation of this product possible.