In a state in which a plurality of door hole seals are stacked on top of each other, the door hole seals are prevented from being bonded to each other without the need to use a release paper. Each of the door hole seals has a main body part and an adhesive part, wherein the main body part has a protrusion provided thereon at a position that is different from a position at which the adhesive part is arranged, and the protrusion has a height greater than a thickness of the adhesive part.