It's a mechanical jack with a crisscrossed arrangement of levers and gears to lift a vehicle. It's typically used to alter a tire or lift one side of a vehicle off the ground for maintenance. Before using this jack, you should first locate the designed jacking points on your vehicle. After this, place the jack in that position and crack the handle to lift the vehicle. They're relatively small and portable, making them a well-known choice for emergency tire jacks.