Purpose: Jack stands are designed to hold the weight of the vehicle or load once it has been raised by a jack. They are used during maintenance, repairs, or any situation where the vehicle needs to be lifted off the ground for an extended period.

Construction: Jack stands typically consist of a sturdy base with three or four legs for stability. They have an adjustable height mechanism, often in the form of a ratchet or pin system, allowing you to set the desired height to support the load.

Weight capacity: Jack stands come in various weight capacities to accommodate different vehicles and loads.