The product is a set of Bosch W175T1 0241235501 spark plugs designed for Volkswagen VW vehicles, specifically the Resistor Spark Plugs L90C CS42S 853. These spark plugs have a thread diameter of 14mm, are made of copper, and are vintage parts suitable for gasoline fuel type vehicles. With a voltage of 12V and an installation depth of 12.7mm, these spark plugs are manufactured in Germany by Bosch, a trusted brand known for quality automotive parts. The product also includes a California Prop 65 Warning indicating potential health risks associated with the product. Representative item set is shown. New old stock without original packaging. Some minor age or storage related pitting/corrosion on the outside surface which should not affect performance. Set weight 12 oz. Resistor; 13/16 in. Hex Size; 0.500 in. Thread Reach; 14mm Thread Diameter; Gasket Seat. 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!