Adjustable Reactive Contoured Ergonomic Support, ARCHES, back health technology provides customized flexible kinetic lumbar support. SertaPedic® comfort support system with layers of molded foam, memory foam, and pocket coils. Upholstered in black commercial grade bonded leather. Pneumatic lift with tilt tension adjustment and lockout feature. Five-star nylon base with casters for easy mobility. Supports up to 275 lbs. Recommended Applications: Executive & Management; Seat/Back Color: Black; Arms Included: Yes; Arm Style: Padded Closed Loop.