Abstract: The present system is related to a door stopper assembly. The door stopper includes a sheath and a corresponding pin that slides within the sheath. A magnet may be used to extract the pin from the sheath. However, the pin and sheath are formed such that the opening of the sheath cavity is smaller than the diameter of the cavity along the length of the cavity and a flange of the pin is greater in diameter than the diameter of the opening. Thus the flange of the pin and a circumferential lip of the cavity contact each other to prevent the pin from being fully extracted from the cavity through the opening of the cavity.