An apparatus and a system are disclosed for protecting the side doors of an automobile when it is parked. The apparatus includes an elongated pad having two opposing ends and a central portion disposed between the two endings, and a protrusion extending from the central portion of the elongated pad and formed of a material sufficiently compressible to be shut within the door of an automobile. The system includes an elongated pad having two opposing ends and a central portion disposed between the two endings, and an adjustable protrusion extending from the central portion of the elongated pad, the adjustable protrusion movable to different locations along the length of the elongated pad, the protrusion is formed of a material sufficiently compressible to be shut within the door of an automobile.