These are really pretty in person. They are plastic but look like metal, with a light iridescent sheen.  

My one complaint- and its a big complaint - is that each placemat is affixed with a rather large product sticker. Once you remove the sticker, the placemat is absurdly sticky and gooey. I had to go through multiple cleaning products to remove the sticky residue so that I could actually use these placemats without them sticking to me, my table, or my guests. 

Bottom line these are pretty, but the product stickers almost ruined the effect for me. If I had not really needed them, I would have returned them.