We are very disappointed with this chair.  It was extremely difficult to put together.  Two of the metal plates did not line up and had to be re-tooled in order to fit.  A screw driver was required and there was no mention of it.  Fortunately for us, we did have one.  Because of the all the problems, it was necessary to unbolt and unscrew the parts a couple of times which added significantly to the hours it took to put together.  We cannot even imagine putting another together in hopes that it is properly tooled.  We plan to return the 2nd chair we purchased.  Our daughter had hoped to buy 6 of them for around their dining room table but we have suggested that she look elsewhere.  This was a very bed experience.  Hard to give it a one (1 star) except the parts were there and delivery was free.