Heavy-duty service jack works both manually and pneumatically — either way you get pure lifting power! Lift Capacity (tons): 10, Min. Lift Height (in.): 7, Max. Lift Height (in.): 27, Operation: Air / Manual, Base L x W (in.): 55 1/2 x 20 Heavy-gauge steel frame prevents twisting Wide stance with low center of gravity provides optimum stability Handle-actuated release valve provides precise load control High speed Air Turbo motor is equipped to raise the load to the desired height efficiently, effortlessly and safely Works manually or with air Chrome-plated rams help extend seal life Steel wheels