Comfortable seating: You need an office chair that can support long workdays while supporting your back and keeping it comfortable - this chair meets those requirements! Its thick padding alleviates muscle pain caused by hours of sitting, while the mesh backrest allows for good airflow so you stay cool during the workday. Sit back and relax: If you need a break, simply lean back and use the tilt function to relieve your lower back. You can adjust the tension knob under the seat to make it more comfortable and offer less resistance when you're really tired. To relieve your neck and lower back, the office chair is equipped with a headrest and lumbar support. Adjust your position: This comfortable black PC chair is height adjustable, allowing you to adapt it to your desk and sitting habits. The headrest can be moved up or down, rotated, and removed, allowing you to relax your neck while sitting and prevent shoulder pain. The TÜV certified gas lift provides extra stability and prevents any wobbling during use. Lumbar support: this comfortable wheeled office chair features a high backrest that supports your head, neck, mid, and lower back, so you are always comfortable even after hours. Total working dimensions.