This office desk chair uses polyurethane covering on the armrests and the frame of the backrest to prevent discomfort, working in tandem with the mesh of the backrest. Installed in the base of the seat is a 2-to-one synchro tilt system which reclines the backrest twice as far as the seat, offering a wider range of posture options. Office Star Products supports this chair with a five-year manufacturer's limited warranty.