This product is a kit designed for use in a car and contains a set of genuine VW/Audi cylinder head bolts. The kit includes a total of 178148 bolts, which are used to secure the cylinder head to the engine block. The specific brand names of the bolts are not mentioned, but they are designed to be compatible with VW and Audi vehicles. The kit also includes other contents, such as washers and nuts, to ensure a complete and secure installation of the cylinder head. This kit is essential for maintaining the proper functioning of the engine and ensuring the safety of the vehicle.