These popular hydraulic workhorses really do the job Built solid and easy to operate, they are great for quickly lifting a car, truck, or tractor * Precision made hydraulics for ease of use, long life and safety Forged grooved head to help prevent slippage of load * Carrying handle for easy handling (on larger models only) Extension screw for extra height, if needed Extended handle length for convenient use and storage * Lift range: 8 1/2" - 13 3/4" w/screw extension: 13 7/8" * Base dimension: 4"x 4 5/8"