This is 1 x 1958 Cadillac Sedan & Fleetwood Door Panel Extension Cover Plate Piece. This fits at the end of the door panel top metal section and is a cover plate, or door panel extender so you don't see the door itself. I have included a picture to try and show where it goes. This one is for the Passenger side Rear door. This is in Good Used condition, it does have some surface rust on it and will need to be sanded and painted before use again, otherwise it's in good condition. This will fit Fleetwood & Sedan models Only so please make sure they are correct for your application before buy it. It may fit 1957 Cadillac Sedan & Fleetwood's as well, but I am not sure so please make sure before you buy it. Sold As Is, As Shown. Please let me know if you would like any other pictures, I would be happy to e-mail them to you. Thanks