Product Details: The Stemco 6-Bolt Tp Trailer Hub Cap with Pipe Plug is designed to provide superior protection for your trailer wheel end. This hub cap is made from strong aluminum casting and features a distinct red rubber plug for easy identification. The advanced window material is designed to withstand higher heat temperatures before discoloring or deforming, while also providing superior protection against corrosion and rusting. This hub cap is the perfect choice for those looking for reliable and secure wheel end protection. FleetPride is your First Click in Heavy Duty®.