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.