Included Items:Mesh Office Chair in Black x 4. Mesh Office Chair in BlackThe Midback Mesh Task Chair provides breathable mesh back supHome Square, 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 Home Squarety. Chair holds up to 150 lbs.Features : Color: Black; Breathable mesh Midback supHome Square with tension control knob for reclining; Contoured fabric seat cushion and Contoured Armrests; Pneumatic height adjustment lever provides a 4.5 inch seat height range; Heavy-Duty Nylon Base with Dual Non-Marking Durable Nylon Wheels. Specifications : Product Dimensions : 24”W x 22”D x 40”H; Product Weight : 22 lbs; Warranty : 1 Year Limited Warranty.