The Techni Mobili Midback Mesh Task Chair provides breathable mesh back support, a contoured fabric mesh seat cushion and contoured armrests with a sleek, contemporary design. The pneumatic height adjustment lever provides a 4.5 inch seat height adjustment range and the reclining back has a tension control knob. Dual wheel non-marking casters and a 5-star nylon base provide durable and stable mobility. Chair holds up to 150lbs.