The main features and components of a car jack stand include:

Hydraulic Jack: Car jacks usually use hydraulic jacks. Hydraulic jacks use fluid pressure to provide lifting force, allowing cars to be easily lifted for repairs, tire changes, or other maintenance work. The size of the jack should be suitable for the weight and height needs of the car.

Support structure: A car jack usually needs to be used in conjunction with a support structure to ensure that the car remains stable and safe when lifted. The support structure can be a support beam, a jack base, or a dedicated jack support frame. These structures should be designed to fit the specific location and support needs of the vehicle chassis to ensure safe lifting of the vehicle.

Operating handle or control: A car jack is equipped with an operating handle or control that controls the operation of the jack. The operating handle is usually used to add liquid or release liquid, thereby controlling the lifting of the jack or reducing the speed and height of the car.

When using a car jack stand, you need to pay attention to the following points:

Safety: Choose appropriate jacks and support structures to ensure they can bear the weight of the car and remain stable. Make sure the car is stationary and use good supports when operating.

How to operate: Follow the jack's operating instructions for proper use and make sure the jack base is firmly placed on a solid, stable surface.

Maintenance: Regularly check the working status of the jack and the hydraulic system to ensure its normal operation and safety.

Car jack stands are commonly used tools in car repair and maintenance work. They can provide convenient lifting and supporting functions for cars, improving maintenance efficiency and safety.