Machined from billet aluminum. Choice of chrome plated, black anodized, gloss black, Black Ops or Contrast Cut finish. Contrast Cut finish starts with a polished rocker box cover that has been black anodized, then hand sanded for a unique handcrafted look. Black Ops features gloss black on top of contrasting textured black for outstanding durability and good looks. All mounting hardware included. Matching derby cover, points cover, inspection cover and timing cover are available separately. Sold as a pair. Made in the USa.