... such as gold and silver jewelry,jewelry,hair,accessories,brooch,glasses,watch,chain,pen,CD,scraping,knives,combs,toothbrushes,dentures,tea ... .use of VKOOL special ultrasonic cleaner can also be cocktails,mellow wine,automatic mixing eggs.2.Glasses,optical instruments:all optical lenses ... other electrical appliances,precision circuit boards,parts used. mini ultrasonic cleaner for finger nail