These Ceiling Panels were exactly what I needed for my bathroom remodel! They were super easy to install. We have an old drop grid ceiling, so nothing to it! You certainly do not need to be a professional contractor to install these which makes them great for all the DIY'ers like me! They are made of a lightweight PVC but look like real antique brass, very impressive to say the least! I like that you can cut them to size if need be, I had to do just a little bit of trimming to make these work beautifully! I now feel like I am walking into the Taj Mahal! They turned my boring old ceiling into an impressive, expensive looking one! I highly recommend these for anyone who is looking to glam up a room or space!