Ergonomic Office Chair with Adjustable Headrest & Lumbar Support, High Back Mesh Desk Chair, 330 LBS Capacity Swivel Computer Chair with Flip-Up Arms, Home Office Gaming Chair(Black)

["【6.4 Inch Adjustable Headrest】ully adjustable headrest lifts up and down by 6.4 inches to fit different body heights; provides stable neck & head support for long hours of work, study or gaming","【4.5 Inch Height-Adjustable Lumbar Support】Lumbar support adjusts up and down 4.5 inches to precisely fit your lower back; effectively reduces spinal pressure and prevents fatigue during prolonged sitting","【90° Flip-Up Armrests for Space Saving】Armrests can flip up 90 degrees to save space when not in use; allows you to push the chair fully under the desk for a tidy office or home layout","【Breathable Mesh & Sturdy Construction】High‑density mesh seat keeps cool and ventilated; reinforced metal base with SGS certified gas lift supports up to 330 LBS; 360° swivel and silent rolling casters for smooth movement","【Easy Assembly & Wide Application】Comes with complete hardware and clear instructions; assembles in about 15 minutes; suitable for office, study, bedroom and gaming room as computer chair, task chair or gaming chair"]