Lifts engage wheels without needing to remove panels on vehicle Raise front or rear end of vehicle using a single controller Load retention pin allows lifts to function as stands Wide base ensures stability Completely air operated. No electrical connections required Safety latch design provides six different locked positions Portable! Use in any area of the shop. Sold and to be used in pairs Air control unit: One control valve operates both units simultaneously Made In USA Minimum Height: Floor level Maximum Height: 24" Min. Wheel Diameter: 19-1/2" Max. Wheel Diameter: 24-1/2"