I wish I could leave 0 stars! This chair is awful. It hasn't stayed since a few months after I purchased it. The hydraulic is terrible. I work from home and can be in meetings on camera and i'm sliding down to the floor all day while I work. Contacted wayfair and they're like "sorry you are out of the eligibility window". Off to file bbb and consumer affair complaints I go. Stay away from Inbox Zero's chairs you'll be sliding down to the floor.