The product is a set of 4 Bosch 8110 spark plugs designed for Nissan, Toyota, and Infiniti vehicles. These double platinum spark plugs have a thread diameter of 14mm, standard configuration, and are made of platinum material. With a voltage of 12V, the spark plugs are suitable for gasoline fuel type and have an installation depth of 26mm. Manufactured in Germany by Bosch, these performance spark plugs come with a hex size of 16mm and are known for their quality and reliability, making them a great choice for car enthusiasts looking to improve their ignition system. Exact item set is shown. New open box with original packaging in fair condition. 14mm thread, 16mm hex, 26mm reach. 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.