This Item is For AM/FM radio only. Does NOT compatible with satellite radio and/or GPS system.Please check if your antenna is screw type before purchasing the item.<br />Cars with motor type base antenna might need modification in order to install this antenna. Fit most vehicles with external screw type base antenna only / Actually it can be used on any car since we provide 3 different size bolts. Direct Bolt-on， Easy to Install.<br /><br />Material: Matt back not carbon fiber &amp; definitely look a lot better (100% Waterproof and Shock Resistant)<br />It comes with M5(diameter 5mm) and M6(diameter 6mm) of screws， if your car is one of the two size， it will fit.<br />Length: 10cm<br />Size: 4&quot; Inch<br />Weight: 25g<br /><br />Package Include:<br />1 x Antenna<br />3 x Different Size Standard bolts (You can choose the right one for your vehicle)