Boss Office Products B992-BK Heavy Duty Executive Chair with 350lbs Weight Capacity in Black Big man's chair; Weight capacity 350lbs Pneumatic gas lift seat height adjustment; Heavy duty spring tilt mechanism 27" brushed metal five star base; 3" double wheel casters Padded arms incorporated into steel wrap around style construction; Reinforced lumbar Upholstered with Black Leather Plus (leather and polyurethane for added softness and durability)