The American Muscle Collection offers 4 timeless styles that will look great on your truck with all the quality that 38 years of custom wheel-building experience can offer. Each wheel is precision machined from forged 6061-t6 aluminum centers and then mated to a spun 6061 one-piece conventional lip barrel. Available in diameters of 15" through 20”. Finishes are Polished center and rim or Black Anodized and contrast-cut center in a polished rim.