Trendy & Attractive TECHNICAL SPECIFICATIONS: Armrest: 2D Adjustable Armrest, PU soft plastic. Seat: Mesh back, and Mesh seat Base: The lower part of the chair is in Nylon. Mechanism: Functional Double Layer Reflex Backrest. Headrest: Move up and down Wheels: PU noiseless wheel castors Hydraulic: Class 3 100mm Back: Lumbar Support. Synchronised-tilting mechanism with multi level locking