Hydraulic Pro-Lift floor jacks meet or exceed ANSI/PALD requirements. Heavy-duty reinforced steel construction provides long term durability. Patented bypass device protects against over-pumping for safer operation. 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. 2-1/2 ton capacity lift range 5-1/2" to 19". Ideal for use in any garage.