1.For necklaces, earrings, rings, bracelets,coins, watcheds strap, sunglasses, contact lens, dentures etc 2. ... wide- diameter transducer for best cleaning resultAPPLICATION Jewelry and watchesNecklaces, Earrings, rings, Bracelets, Coins, Watches strap etcEye Care Glasses, Sunglasses, Contact lens ...