Personal or Home Use: Perfect for cleaning jewelry (earrings, necklaces, rings, bracelets, diamonds), glasses and timepieces (glasses, sunglasses, optical lenses, contact lens accessories, watch chains, waterproof watches), commodities (tattoo guns and tubes, electric shaver heads, razor blades, dentures, combs, toothbrushes), stationery (pen-heads, printer-heads, inkjet cartridges, seals), metal articles (ancient coins, badges, valves, machine nozzles, electronics components, mechanical parts), and metal dishware (forks, knives, spoons, and other small silverwares).