This chair is cheaply made and very uncomfortable. The seat is too shallow. The chair is so light that when I bent over to pick up a piece of paper, the wheels rolled out under me and I fell on the floor. I would have returned it almost immediately but iwe had already assembled it - no way to get it back in its box. Now the chair is less than 3 months old and the pneumatic cylinder is failing. It drops down as I am sitting in it. This chair is only used a few hours a day in my home. I have neve had a desk chair that was such a disappointment. I will not be buying from Wayfair again.