Sunex 8514 300-Pound Capacity Telescoping Tractor Seat with Parts Tray and 3.5-Inch Heavy Duty Casters Air cylinder for easy height adjustment Heavy duty, chrome finish casters with rubber tread for easy of mobility Large, reinforced 17-Inch diameter 1-Inch deep tool tray Low height 18-Inch, height 22-Inch. seat width 16