This product is a Genuine Porsche CV Joint Boot Band designed for the rear left side of a Boxster or 911 model. The part number for this band is 92833225701. It is used to secure the CV joint boot, which protects the CV joint from dirt and debris. The band is made of high-quality materials and is an authentic Porsche product. It is an essential component for maintaining the performance and longevity of your vehicle's CV joint.