Make your space work with Ignition 2.0 Mid-Back Big and Tall Task Chair. It is designed to fit your body, your environment, your style and the way you get things done with customized adjustability and remarkable intuition. Breathable, four-way stretch, black mesh back cradles your spine with natural lumbar support and increases airflow. Synchro-tilt control mechanism with seat slider reclines the back and seat in the perfect ratio to give you a natural posture whether sitting upright or leaning back. All-adjustable arms include a pivot adjustment for ultimate comfort. Other functions include adjustable lumbar, pneumatic seat-height adjustment from 17" to 21-1/2" , 360-degree swivel, tilt tension and tilt lock. Five-star base is equipped with hard dual-wheel casters. Task chair also offers black vinyl on foam seat and a black frame. 23-1/2" wide seat provides a usable seat depth from 17-3/4" to 19-1/2". Back size is 22-3/4" wide x 24-3/4" high. Weight capacity is 450 lb.