The product is a set of ignition coils plates designed for Mercury Mariner outboard engines with 150, 175, and 200 HP. These high-quality ignition coils are manufactured in the United States by Mercury, ensuring compatibility and reliability for your boat's engine. The manufacturer part numbers 195872, 7370A13, 813715A9, and 43542 are provided for easy identification and installation. Whether you are restoring an old boat or maintaining a newer one, these ignition coils will help keep your engine running smoothly and efficiently.