This product is a Genuine Porsche Engine Crankcase Breather Hose, with part number 99710714603. It is designed to be used in Porsche vehicles and is used to regulate the flow of air through the engine's crankcase. The hose is made of high-quality materials and is an essential component for maintaining the proper functioning of the engine. This product is a direct replacement for the original part and is recommended for use in Porsche vehicles for optimal performance.