This Contract Mesh Task Chair comes with a premium open breathable mesh back that will keep you cool and comfortable during extended periods of work. The height adjustable arms provide comfortable and versatile arm rests that can suit your personal preferences. The contoured 4” high density foam seat cushion provides added comfort. The chair has a 3 paddle multi-function tilting mechanism, which allows the seat and back to be independently adjusted and locked in any position throughout the tilt range. The adjustable tilt tension control knob, which is located under the seat, allows you to customize the tension of the tilt.