Pro-Lift 3 ton hydraulic garage jack. Speedy Lift technology, a single stroke raises the jack saddle from resting position to vehicle chassis. Heavy-duty reinforced steel construction provides long term durability. Patented bypass system provides over-pumping protection. Built-in safety valve provides overload protection. Wide stance frame for better stability. Twist gear release mechanism. Swivel saddle and swivel rear casters provide easy positioning and safety. Meets or exceeds ANSI/PALD standards. Lifting range: 5-3/4" to 19-13/16".