Simple Deluxe Task Office Chair, Black

ERGONOMIC DESIGN: Having a chair with lumbar support is especially necessary for all-day working and studying. This ergonomic office chair will not only help to sit at correct sitting postures but also help relieve stress and reduce fatigue after long-time sitting. The curved backrest design line up with the human body's spine natural curve to provide low-back support. COMFORTABLE SEAT: Designs to provide long-lasting comfort. High-density sponge seat and back with sufficient seat depth to allow comfortable sitting for a long time studying. ADJUSTABLE HEIGHT: With adjustable seat height, this office chair can be adjusted to match with your home or office desk. Pneumatic controls make our office chair easier to raise or lower - simply pull up the lever and adjust the seat at your desired height. QUALITY MATERIAL: Product equipped with heavy-duty metal base and casters that can support up to 250 lbs. These 360-degree swivel caster wheels enable silent and smooth sliding while never scra