VIVA OFFICE Luxury High Back Ergonomic Office Chair with Cushioned Seating High back bonded leather ergonomic office chair with extra thick padding provides the ultimate comfor 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 design eliminates leg fatigue High quality Nylon base with Nylon casters for easy mobility Weight capacity: 250 pounds. We provide free component-exchange in one year