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. Color: Black.Breathable mesh Midback support with tension control knob for recliningContoured fabric seat cushion and Contoured ArmrestsPneumatic height adjustment lever provides a 4.5 inch seat height rangeHeavy-Duty Nylon Base with Dual Non-Marking Durable Nylon Wheels1 Year Limited Warranty, Ships in 1 Box