This is an acrylic chair that is made with single injection molding. That means all the major portions of this chairs are a single piece and none are glued together.Acrylic is a special type of clear plastic that is typically much stronger than the regular plastic. The popular alternative is polycarbonate, which is much stronger than acrylic (at least 10x stronger). But polycarbonate are not as translucent and tends to discolor under sunlight. Acrylic looks closer to a "glass" looking chair.Prior to the purchase, my main concern with this chair was its sturdiness and comfort.I have no issues with its sturdiness. I am 5'8 and 160 lbs and I do not feel any bend to this chair. It feels rock solid. I have had guests over 200 lbs sit on it and they had no issues.As far as comfort, maybe it is becuase I typically sit on a Herman Miller chairs (both at work and at home), but this chair doesn't strike me as particularly comfortable. It is perfectly comfortable for dining. I wouldn't mind sitting on it for few hours. But this chair would not challenge my Herman Miller or my couch for comfort. Nonetheless, this chair is not uncomfortable either.Pros:1)Obviously beautiful and EVERYONE loves to compliment my chair. It is the first thing they notice about my dining room. It goes well and looks particularly gorgeous with my all-glass dining table.2)Sturdy and comfortable enough for almost everyone.3)Good for outdoors and exposure to the sun without worrying about discoloring.4)More translucent than the polycarbonate version.5)Not easily scratchable. Acrylic is much stronger than regular plastic.Cons:1)Not as sturdy as polycarbonate version. But sturdy enough.2)Not a particularly comfy chair. But comfy enough.