Made of aluminum. Very light weight. Looks good but I doubt it will last. Took 2 hours to build with 2 people and a third to help put the legs on. One leg arrived slightly bent at the top. Only part missing was one of the Stakes for yard installation. I didn’t need it anyway. Able to follow most of the instructions. The canopy material is flimsy and so are the pole valances. So much so that the pole valances already had holes in two of them. Almost as if already dry rotted. The plastic clips holding the netting definitely will not last and I’m going to look for new clips. Th netting smells like a chemical plant. Looks good for now, definitely don’t think it will last. Not worth over $400. Luckily I got it on sale. I will update.