Sturdy Y-shaped back frame structure secures every lean.The lumbar support can be adjusted up and down by 2 inches, providing a wider range of choices for people of different sizes and maintain the lumbar spine in a healthy status. Adjustable armrest, PU leather armrest padding, effectively relieve shoulder pressure during work.The adjustable headrest perfectly fits the neck to effectively support the weight of the head and protects the cervical spine. 95°-130° seat back tilt angle. The organic high-density foam cushion can effectively disperse the pressure on the hips and thighs and relieve the pressure on the lower limbs caused by sedentary work. Suitable for long hours in the office and home office environment.Sturdy Y-shaped back frame structure secures every leanAdjustable lumbar supportAdjustable armrestPU leather armrest paddingAdjustable headrest95°-130° seat back tilt angleHigh-density foam cushionBreathable mesh backrest17-20" Seat Height20" Seat Width18.5" Seat Depth