This is the drivers side / LH door heat duct for a 1955 & 1956 Cadillac 2 door coupe. This will fit all 1955 & 1956, 2 door model Cadillac's. This mounts in the drivers side door, behind the heat duct box, and routes the heat / vent air through the door. This does have some rust on it and should be sand blasted and painted before use again, but is otherwise in good shape. Comes as shown, Sold As Is.