The Bush Furniture Coliseum Mid Back Tufted Office Chair offers a comfortable office seating while conveying an elegant style to your interior. Along with its appealing look, this commercial-grade desk chair also includes a variety of features intended to provide exceptional comfort and functionality. The tilt mechanism can be set to a custom rate and ease of recline by turning the tension knob located underneath the seat. A convenient lever instantly adjusts the seat height to meet individual preference and is also used to lock the tilt function so that the chair is fixed in an upright position. Five dual-wheeled casters and a 360 degree swivel base provide complete mobility and range of motion for multitasking and collaboration. Foam padding gives the 22W x 18.5D seat a medium-firm feel. The armless design saves space in compact areas by allowing the computer chair to slide all the way under a desk or table. Made with heavy duty steel and finished with an Espresso Wood cover, the durable base supports the chair for a weight capacity of 275 pounds. This casual swivel chair is tested to meet ANSI/BIFMA quality standards for safety and performance and is backed by a 5 Year Warranty.