FEATURES: Ergonomic Design: Featuring a breathable mesh back adjustable lumbar support and rocking mechanism with tilt tension adjustment knob this office chair promotes proper posture and reduces back pain. Height Adjustable: Easily adjust the seat height from 33 to 37 inches to suit your desk setup. Chair can be adjusted between 90 - 105 degrees for users to find the most suitable angle. Flip-up Armrests: The armrests can be flipped up to allow you to get closer to your desk providing added comfort and flexibility. Slide the chair completely under a desk or table to save space. Swivel and Mobility: The smooth-rolling casters and 360-degree swivel base allow for effortless movement and reach across your workspace. This chair can support up to 275 lbs with ease. Breathable Mesh Chair: Mesh backrest promotes airflow keeping you cool and comfortable throughout the day perfect for a long day sitting.