• Contemporary Office Chair• Black Fabric Upholstery• Mid-Back Design• Built-In Lumbar Support• Contoured Seat• Triple Paddle Control Mechanism• Back Height Adjustment Knob positions the lumbar support to reduce back pain• Back Adjusts 2.5" up and down• Forward Tilt Control Knob adjusts the seat to reduce disc pressure• Infinite-Locking Back Angle Adjustment helps reduce disc pressure by changing the angle of your torso• 2-to-1 Synchro Tilt Adjustment tilts the back and seat in unison for a comfortable seating position• Tilt Tension Adjustment Knob adjusts the chair''s backward tilt resistance• CA117 Fire Retardant Foam• Waterfall Seat reduces pressure on your legs• Swivel Seat• Pneumatic Seat Height Adjustment• Height & Width Adjustable Padded Arms• Heavy Duty Nylon Base• Dual Wheel Casters