C6 Corvette Crossed Flags Logo Aluminum Valve Stem Caps Knurled C6 Corvette Crossed Flags Logo Valve Stem Caps Built to last and look good for years to come These are officially licensed by GM with the C6 Crossed Flags logo under a beautiful, clear polyurethane dome. Sold as a boxed set of 4. If you've ever bought a set of those cheap Chinese caps only to watch them deteriorate quickly, you'll appreciate the German manufacturing quality of these aluminum domed logo caps.