This Executive Mid Back Chair features extra lumbar support along with a thick seat and back cushion. Beautifully upholstered seating surface in black LeatherPlus. LeatherPlus is leather that is polyurethane infused for added softness and durability. Pneumatic gas lift provides instant seat height adjustment. Adjustable tilt tension control. Upright locking control. Durable polypropylene armrests. Large 27" nylon base for greater stability. Hooded double wheel casters. Black finish. Black frame. 27"W x 28-1/2"D x 38-1/2 - 42"H overall.