You get a 4pack of NGK Iridium sparkplugs. The NGK Iridium IX Spark Plug Stock 4469 features a 0.044 inch tapered cut iridium tip for improved ignitability. With a reach of 26.5mm and a ground electrode quantity of 1, this spark plug is designed for optimal performance. The spark plug has a 5K ohm resistance and a copper core center electrode, making it suitable for a wide range of vehicles. The gasket seat type and ISO insulator height ensure a reliable connection, while the nickel core ground electrode provides added durability. Overall, the NGK Iridium IX Spark Plug is a top choice for ignition systems in cars and trucks.