This is an attractive and comfortable chair, but the company's quality control is non-existent.  Four of the bolts for assembly were too short (I had to go to Lowe's for replacements), the plastic caps to cover the bolts were flimsy and easily broken, and the height lock does not work at all.  No matter what height I set it at, it 'deflates' to it's lowest setting.  The chair is essentially useless to me.