The product is a box of 4 Autolite 2544 spark plug suppressors designed for 1983 Ford Escort and Mercury Lynx cars with a 4-cylinder 1.6-liter engine. These vintage spark plugs have a thread diameter of 14mm and are made in the United States. Specifically designed for gasoline engines, these spark plugs provide reliable ignition for optimal performance and efficiency. Perfect for restoring or maintaining classic vehicles, these Autolite spark plugs are a high-quality component for any automotive ignition system.