Semi Truck Stainless Wheel Simulators. AERO COVERS SAVE FUEL FOR REAL ! Highest Quality non magnetic 304L Stainless Steel.  Will NEVER rust, pit, corrode or turn yellow.  100% American Made. Complete SET of 6 ( 2 front 4 rear ).  AERO Covers are available for all tractors and trailers, 22.5" and 24.5" wheels, 6x2 or 6x4 tractors, dual aluminum and dual steel wheels, wide base single wheels, including zero offset.  TEST DATA SHOWS 1 1/2 TO 2% FUEL SAVINGS.  Whether you have an early model truck from the 1900s or a Brand New truck, these covers fit them all.  Ain't you tired of polishing those high maintenance wheels, or watching your cash fly out of your pocket twice a year to polishers.  The down time, the hassle.  Is it really worth it.  Order yours today!