The WeatherTech 98-00 BMW 323i Rear FloorLiner - Grey is a custom-fit floor liner designed to provide maximum protection for the rear floor of your BMW 323i. It is made from a proprietary thermoplastic resin that is odorless and non-toxic, and is designed to be flexible and durable. This liner is laser measured to ensure a perfect fit, and features a raised lip that helps to contain spills, dirt, and debris. The textured finish helps to keep items from slipping, and the liner is easy to remove and clean.