A return spring is a type of springs that helps to keep objects in their original position or state. It is frequently used in devices such as clocks, pens, and office chairs. The purpose of return springs is to allow an object to return to its original position after it has been moved or released. This type of spring typically consists of a metal coil that is tightly wound around a central rod. When the object is moved or released, the coils unwind and exert a force on the object that returns it to its original position.