This product is manufactured by hand, designed specifically for use on the track and racing, is supplied raw, as shown in the picture. WARNING: NOT DEVELOPED FOR ROAD USE! Racing product in fiberglass fabric, (in all our articles we do NOT use fiberglass with coarse flakes, but only in the form of woven fabric, for a better final product quality). Externally they are presented with white or black gelcoat, internally made of fabric impregnated with a special thermosetting polyester resin, which hardens by catalysis, This resin has been studied with the collaboration of experts to ensure great lightness and flexibility to the fairings. Our fiberglass products are to be drilled , are marked the points where to drill the holes. you can add special quick release screws (for racing use) purchased on our website separately.