The High-Quality 16mm Spark Plug Socket 3/8″ Drive is a durable and efficient tool designed for most 12mm spark plugs. Its key features include high-quality construction, a 3/8″ drive size, and a 16mm socket size. The socket is made to withstand heavy use and provide a secure fit for spark plugs. Its unique selling points are its durability, efficiency, and compatibility with most 12mm spark plugs.