The product is a set of 10 Bosch Super 7567 HR7DC copper spark plugs, designed to fit various vehicle models such as Mercedes-Benz, Ford, and Mazda. These standard configuration spark plugs have a thread diameter of 14mm, a hex size of 16mm, and are suitable for gasoline fuel type. Manufactured in Germany, these spark plugs are reliable and high-performance, providing a reliable ignition system for your vehicle. With a 12V voltage requirement and an installation depth of 17.5mm, these spark plugs offer a safe and efficient option for your car or truck. Exact item set is shown. Vintage new old stock spark plugs with original packaging. Box was in a facility with water intrusion and may have slight odor but no damage or mildew/mold are present. Set weight 1 lb. M14 x 1.25 thread size, 17.5mm thread reach, 16mm hex size, tapered seat type, 0.90mm gap. 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. Most items have 30-day returns along with free fast shipping in 1 business day (see details). Message us anytime. Buy from a trusted 16+ year seller!