HERMAN MILLER MIRRA 2 HOME OFFICE CHAIR – GRAPHITE. Latitude Mesh BackHeight AdjustmentTension ControlAdjustable ArmsPivoting ArmsAdjustable Lumbar SupportFlex Front SeatRear TiltForward Tilt. These are overstock display chairs. Does not come with original packaging. Mirra 2 chair look like New at half price of MSRB. Rear Tilt Lock. Soft Caster (work on both carpet and hard floor).