A self-inking stamp is a rubber stamp inside of a mechanism that contains a spring, stamp and a pad. The stamp rests on the pad when it’s not being used. This way when you want use the stamp it is ready to go.
Self-inking stamps are practical, very clean and easy to use!
Since the stamp is resting on the stamp pad all the time with pressure, it causes a couple of problems. First, it places an impression (indentation) in the pad, if you want to change the stamp on your self inking mount, it is advisable to change the pad also. If the pad is not replaced your stamp may not work correctly. Second, the pad over time will wear out.