This product is a Genuine BMW Engine Coolant Hose, part number 11537581576. It is designed to be used in BMW vehicles and is specifically used for coolant circulation in the engine. The hose is made of high-quality materials to ensure durability and proper functioning. It is an essential component for maintaining the proper temperature of the engine and preventing overheating. This product is an authentic BMW part and is an exact replacement for the original hose.