Update your semi truck's wheels with enhanced protection against oil, dust, and debris, with the OTR 6-Hole Aluminum Trailer Hub Cap with Expertise Built In. This removable hub cap covers a wheel's exterior, to prevent harmful roadside materials from causing damage to the lug nuts, bolts, and axles. Engineered with resilient metals and an ergonomic design for an easy-to-install or remove procedure. FleetPride is your First Click in Heavy Duty.