The product is a set of four Bosch 9613 FR7NII33X double iridium spark plugs designed to fit vehicles from Lexus, Toyota, Nissan, and Kia. These spark plugs have a thread diameter of 14mm, standard configuration, and are made of iridium material. They are gasoline fuel type, have a voltage of 12V, and come with a hex size of 16mm. The installation depth is 26.5mm, and they are performance parts manufactured in Germany by Bosch, a trusted brand known for high-quality automotive components. Representative item set is shown. New in original sealed packaging, which has some wear from storage and handling. Set weight 8 oz. Made in Germany. No returns on installed items or partial sets. Please review our business policies in our store for information regarding returns, shipping and warranties.