Thickly-padded pillow top seat & back with deluxe leather upholstery. Built-in lumbar support works overtime to help reduce back pain. 2-to-1 Synchro Tilt adjusts back & seat angle simultaneously. Padded height-adjustable waterfall arms. Heavy-duty five-star nylon base with dual wheel carpet casters for mobility. Recommended Applications: n/a; Features & Functions: 360° Swivel; Pneumatic Seat Height Adjustment; Synchronized Knee Tilt; Tilt Lock; Tilt Tension; Arms Included: Yes; Back Width Minimum: n/a.