Deluxe Microfiber Polishing Cloth Cleans, polishes and protects gold, silver, platinum, chrome, resin. The cloth has both a treated inner layer (white) and an outer layer (grey). Use it to loosen tarnish and buff surfaces for brilliant shine on pens or jewelry. With millions of positive and negative-charged fibers, microfiber lifts and holds dirt, grease, liquids and bacteria.