This Big & Tall Executive Office Chair is an ideal chair for larger and taller professionals who spend long hours sitting behind a desk.An extended upper back with integrated headrest and built-in lumbar support reinforces healthy posture, reducing back strain and muscle fatigue. The 22 inch wide swivel seat is double padded with 4 inches of CA117 fire retardant foam that's contoured for greater comfort. Raise or lower the seat using the pneumatic height adjustment lever for a custom fit. Generously padded loop arms provide additional comfort and posture support. Turn the tilt tension adjustment knob to increase or decrease the amount of force needed to rock or recline and lock the seat in place with the tilt lock mechanism. This sturdy chair has a heavy duty chrome base, smooth rolling dual wheel casters and a 500 pound weight capacity.Whether you're buying chairs for a 911 dispatch office, call center, or control room, this 24/7 intensive use office chair is the right chair for the job, especially in a multi-shift environment. Big & tall. Adjustable. Mobile: True. Contoured Seat and Back. Tilt Lock Mechanism. Tilt Tension Adjustment Knob. 4" Thick Foam Padded Seat. Seat size: 22"W x 22"D. Back Size: 23"W x 28"H. Arm-Height From Floor: 27.75" - 31.5"H. Arm-Height From Seat: 7"H. Seat Height: 21.5" - 25.5"H. Item Weight 65. Single Unit Weight: 68.9. Dim Single Unit: 36"L x 27.25"W x 18"H. Finish: Black Powder Coat. Upholstery: Black Bonded Leather. Material: Chrome, Foam, Leather, Metal, Plastic. Back Material: Leather/Faux Leather. Seat Material: Leather/Faux Leather. Frame Material: Metal. Seat Thickness: 4. Degree of Swivel: 360. Weight Capacity: 500. Assembly required: Yes. Warranty: 5 Year Limited (non moving metal parts) 2 yr Parts. Back Color: Black. Frame Color: Gray. Seat Color: Black. Back Type: High