Serta Fairbanks Big and Tall Executive Office Chair, Ergonomic High Back Computer Desk Chair, Lumbar Support, Padded Armrests, Bonded Leather, 350 lb Capacity, Black

I have bought two of these chairs. Best chair out there but hard to find. Bought one from Best Buy it lasted about a year. Went looking for another to replace it because it helped with pain of sitting all day the most. Not sure if this was a second or if the shock and materials are just weaker but the shock was shot in a month, never sat as high and the parts didn't go together so well. they move and click all the time when you move in it but wont tighten.