This product is a replacement seal for an aftermarket sunroof. It is designed to fit the specific dimensions and specifications of the 91156419100 model. The seal helps to keep out water, dust, and debris from entering the vehicle through the sunroof. It is made from durable materials to ensure a long-lasting and secure fit. This aftermarket sunroof seal is an essential component for maintaining the functionality and appearance of the sunroof on your vehicle.