As everyone has mentioned, the rockers are difficult to assemble, however, if you  read the directions carefully and especially if you read these reviews, you will figure out how to assemble the chair without the bars in the back being felt when you sit on it. It’s a matter of tightening the three adjustable bars again after assembly is completed. 
   My problem with the chairs and the reason why I will be returning them is that  the center of gravity is very much toward the back, so when you sit in them you lean  far back almost as if you were in a chaise lounge. My feet don’t touch the floor and so it’s difficult to rock, and the front edge of the nylon mesh seat cuts into the back of my knees and so it’s extremely uncomfortable. Basically, the balance is way off, it leans too far back and actually looks and feels ridiculous. So I will be returning them (I bought two).