A racing jack is a hydraulic lifting device with a pumping action that lifts vehicles very quickly. It has a very low clearance level so is suitable for cars with low chassis (e.g. sports cars).
Racing jacks contain dual pump pistons for quicker pumping and lifting.
On the left is a racing jack in action.
Please note: A racing jack is a lifting device only and does not support a load. When using a racing jack it should be used to lift the vehicle onto appropriate stands such as axle stands to support the load.