Make your space work with Ignition 2.0 Mid-Back Big & Tall Task Chair. It is designed to fit your body, your environment, your style & the way you get things done with customized adjustability & remarkable intuition. Breathable, four-way stretch, black mesh back cradles your spine with natural lumbar support & increases airflow. Synchro-tilt control mechanism with seat slider reclines the back & 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 & tilt lock. Five-star base is equipped with hard dual-wheel casters. Task chair also offers black vinyl on foam seat & 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.