Mesh-back work chair adapts to a variety of sizes, shapes and postures. Intuitive design uses your body weight as a counterbalance when reclining to provide the right amount of resistance and support to comfortably accommodate all users. Functions include pneumatic seat-height adjustment and tilt lock. Three-way adjustable arm can support your elbows and forearms in virtually any position. Arms easily reposition in height, depth and pivot. In addition to the weight-activated controls and ergonomic design, the Lota Series mid-back chair offers a mesh back and cushioned seat upholstered in fabric. Black frame includes a five-star base with casters for easy mobility..