VIVA OFFICE Mid back Thick Padded Bonded Leather Office Task Chair with Flip-Up Arms, Black Ergonomic mid back black Bonded leather executive chair with special backe design, designed to provide ultimate back support Simple pneumatic controls let you raise or lower your seat and rock back in your chair.Pulling out on the control handle, which allows your chair to tilt back, or sit forward and push the control handle in to prevent it from tilting Waterfall seat edge for lessened pressure on the back of the legs intended to increase leg circulation and reduce fatigue High quality Nylon base and Nylon casters to give great stability Weight capacity is 250 pounds. Easy assembly upon arrival. We provide free component-exchange in two years