Very poor quality control. I ordered two sets of chairs and was able to assemble one from each box. In the first box, one set of legs contained all “C” legs, even though they were marked as two B and two C. It took me an hour and opening the second box to figure out the problem wasn’t me - so frustrating!  The other defective set contained three C legs, even though they were marked as two B and two C. So I have two of the four chairs assembled. Waiting to hear from manufacturer as Wayfair punts on problems.