I ordered these spoiler pedestals for and aftermarket wing that I had laying around. Was happy to see that the quality of the product was good, and came with all the necessary mounting hardware...even the base gaskets! The pedestals themselves are made of and ABS plastic and finished in flat black. They have metal inserts for the included studs for extra strength. The only thing I would recommend is to swap out the regular nickle screws and washers with stainless ones. Ps: Sorry guys, but I used these on a Mopar!