HD METAL is a high performance metal polish and sealant in one. As you polish to remove oxidation, stains and dullness, HD METAL shines, brightens and protects. HD METAL works on all chrome, polished aluminum, and stainless steel finishes. Plus, it can be used by hand or with your favorite polishing ball and cordless drill. Use HD METAL 4-6 times a year on all chrome or polished wheels to keep them looking new.