Super pleased with these chairs. We bought two pairs for our fire pit. Such a great buy! Half the price of others. The poly wood material WILL give a little on our extremely hot days (the norm here lately has been to have a heat index of 105° or so), but are not in any way flimsy...just the seat part because a little flexible. Not a bad thing! The chairs have nice, thick boards.  Chairs were easy to assemble, but would recommend using an electric screwdriver.