You are looking at a laser-cut, 18GA mirror stainless steel cap kit for your 2005-2009 Mustang (We fit these on a 2005 GT so please verify that they will work with your model).
These all have the factory information etched into the surfaces permanently in black, and they adhere with 3M automotive double-sided tape.
Included cap covers are: OIL, COOLANT, POWER STEERING, and BRAKE FLUID