This lower back office chair with height adjustable mechanism and armrest is designed for your maximum comfort and relaxation for both long and short working hours. Suitable for home and office. High back with a place to relax your neck and head. Its a great fit for your entire body posture and sitting well-being. it has a comfortable armrest. Comes already assembled. Very strong and sturdy with 5 solid legs with rollers to aid easy movement around the office. No assembling required. Comfortable task chair upholstered in black fabric. It has a padded seat and back for all-day comfort and support. Pneumatic seat-height adjustment; 360-degree swivel; smooth-rolling casters