Product Details: Ensure your semi truck's wheels are Ready for the Road Ahead™ with enhanced protection against oil, dust, and debris, with the Stemco 6-Hole Traditional Hub Cap. To prevent damage to a wheel's lug nuts, bolts, and axles, this removable hub cap attaches to the frame to guard against roadside materials. Built with sturdy metals and a simplified design for an easy-to-install or remove procedure. FleetPride is your First Click in Heavy Duty®.