Breathable Mesh Back and Leather Seat with Adjustable Lumbar Support.One Touch Pneumatic Seat Height Adjustment.Deluxe 2-to-1 synchro Tilt Control with 3-Position Lock, Anti-Kickback, Seat Slider and Tilt Control.Height Adjustable Arms with PU Pads.Rated for 300 Lbs.Heavy Duty Angled Gunmetal Finish Base with Oversized Dual Wheel Carpet Casters.