A dab cleans any metal and adds a protective barrier to minmize re-tarnishing. Reliably makes any surface shine. And that bright, clean, polished surface lasts. You can use Maas even glass and plastic. Whatever the surface, Maas will clean it. Finally, a Shine That Lasts! This is the best there is on gold, silver, chrome, copper, brass and stainless. MAAS powerful wipe on wipe off formula instantly removes years of residue, rust, tarnish, and oxidation from all metals and more. Handles the toughest jobs yet gentle enough for delicate antiques. MAAS applies a rich brilliant reflective lustre. Superstrong anti-tarnish corrosion inhibitor provides long-lasting protection