These are for my 1953 Mercury. To start off, I cut our the center sections of my tail light bezels, " still need to be refined". I bought some clear plastic that is used in commercial light fixtures. I found some metal to the same curvature of my factory lenses. Ended up using large bean cans "empty". I used actual metal duct tape, the aluminum stuff, to attach the cans. Put them in oven at 275 and watched them for about 5 min, then pulled them out with welding gloves and helped form the plastic to the curve better. After that I cut them out the the shape I needed.