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.Feature 1 : Breathable mesh midback support with tension control knob for recliningFeature 2 : Contoured fabric seat cushion and contoured armrestsFeature 3 : Pneumatic height adjustment lever provides a 4.5 inch seat height rangeFeature 4 : Heavy-duty nylon base with dual non-marking durable nylon wheelsFeature 5 : 1 Year Limited WarrantyFeature 6 : Ships in 1 box