EVERYTHING!  This is a very well built set and is even prettier than the picture.  It was easy to assemble - I, a 72 year old woman did it by myself, including drilling the holes in the table top - though the instructions didn't mention that a drill was needed.  I've contacted the company to let them know they need to correct this oversight.  Fortunately, I have a Dremel drill and didn't have to purchase or borrow a drill.  I was so happy that the seats are wood colored and not red as they look like to me in the photo.  I would recommend this set to everyone, knowing they would be happy with it as well.  This is not my first purchase of Birch Lane furniture and won't be my last.