SUNEX TOOLS 8514 300-Pound Capacity Telescoping Tractor Seat with Parts Tray and 3.5-Inch Heavy Duty Casters

.Air cylinder for easy height adjustment. Five 3-1/2-Inch heavy duty, chrome finished casters with rubber tread for ease of mobility. Large, reinforced 17-Inch diameter 1-Inch deep tool tray.
.Air cylinder for easy height adjustment
.Five 3-1/2-Inch heavy duty, chrome finished casters with rubber tread for ease of mobility
.Large, reinforced 17-Inch diameter 1-Inch deep tool tray
.Replacement caster with nut available-part No. RS8515CS
.Low height 18-Inch, height 22-Inch. seat width 16