At first glance this task chair looks like your basic looking office chair, but look closer. This chair lends comfort with ergonomic contoured cushioning and a back depth adjustable back. The back depth adjustable knob allow you to slide the back outward which can accommodate users with longer legs. Curved nylon arms can help reduce neck and shoulder fatigue. The pneumatic adjustment lever will allow you to easily adjust the seat to your desired height. The mid-back swivel ergonomic task office chair with arms is a comfortable desk chair with a small profile that won't take up a lot of space in your home or office.Contemporary Task Office Chair with ArmsUpholstered back and seatMid-Back DesignBack Depth Adjustment Knob accommodates your upper leg lengthAccordion Back CoverContoured Back and Seat with CAL 117 Fire Retardant FoamPneumatic Swivel Seat Height AdjustmentNylon ArmsHeavy Duty Nylon Base, Dual Wheel CastersLeatherSoft is leather and polyurethane for added softness and durability