The product is a set of 3 ACDelco Double Platinum Spark Plugs with the manufacturer part number 41-108, designed for use in Buick, Chevrolet, and GMC vehicles. As a trusted brand in automotive parts, ACDelco Professional ensures high quality and reliable performance for your vehicle's ignition system. These spark plugs are made with double platinum construction to provide longer life and improved durability, making them a dependable choice for maintaining optimal engine performance and efficiency.