The simulator set is made of a high quality T304L stainless steel, which has the highest rating of resistance to both rust and corrosion so they will never rust or turn yellow. All of the pieces have been mirror-polished prior to leaving the factory. The item is one of the best investments/upgrades for your truck or van. Our package comes with 1-year warranty. Please buy with confidence. Material: Stainless steel 304L ? Works with: 16” O.E and aftermarket rims Fits make: GMC 3500 01~07