Powerful ultrasonic cleaner cleaning system works to remove dirt, dust, and grime from your valuable items including jewelry, eyeglasses, coins, rings and watches without damaging them, making them more clean and beautiful. Features: 20 oz stainless steel tank Cleans jewelry, necklaces, rings, earrings, bracelets, coins, eyeglasses, keys, diamonds, silverware, metal badges, watchbands, waterproof watches, shaver heads, razor blades, dentures, combs, toothbrushes, valves, nozzles, machine parts,