HERE IS A NICE NEW ANTENNA FOR YOUR CAR . **** THIS IS A RETRACTABLE 3 SECTION UNIT THAT IS 38" LONG WHEN IT IS EXTENDED AND 16" WHEN RETRACTED **** IT HAS A 48" CABLE THAT PLUGS IN TO YOUR RADIO **** THE MAST DOES UNSCREW FROM THE BASE SO IT WILL BE FINE FOR USE WITH A CAR COVER **** THIS FITS IN A 5/8" thru 7/8" HOLE IN THE FENDER **** THE BASE GASKET DIAMETER IS JUST OVER 1 1/2" **** IT IS 1.59" DIAMETER ****