The product is an authentic Rolex Datejust Jubilee 1 link made of 18K yellow gold and stainless steel, designed for 36mm models such as Rolex 16013, 16233, and 16203. This band link is crafted in Switzerland and is a replacement part for Rolex watches, offering a luxurious and durable addition to the timepiece. The combination of gold and stainless steel materials ensures a high-quality and stylish component for Rolex watches.