Typically such dispensing closures are designed such that the closures can be attached to a neck of a container, e.g. by screwing the dispensing closure onto the neck of a container, so that a fluid can be dispensed out of the container and through the opening or a spout of the dispensing closure.
Such dispensing closures are used for many different purposes and are frequently used for containers which contain fluid media, especially drinks or other method products, but such dispensing closures can be also used for containers storing other fluids or viscous products. Such a dispensing closure is for example disclosed in EP 1 503 942 B1.