The Genuine BMW Sealing Plug (20X25mm) - 51713402713 is a small, round plug with dimensions of 20mm by 25mm. It is used to seal openings or holes in various parts of a BMW vehicle, ensuring that no air or liquids can leak out. This plug is made by BMW and is an authentic, original part. It is designed to fit securely and provide a tight seal, helping to maintain the overall integrity and performance of the vehicle. This sealing plug is a reliable and durable component that is essential for maintaining the proper functioning of a BMW vehicle.