This product is a genuine BMW frame designed for the fixed side window on the right side of the vehicle. It has a part number of 51357179682. The frame is made specifically for BMW vehicles and is designed to securely hold the fixed side window in place. It is an important component for maintaining the structural integrity and functionality of the window. This frame is a high-quality, OEM (original equipment manufacturer) part and is recommended for use in BMW vehicles for optimal performance.