... designs : Pink , Iron gray , Blue Mini ultrasonic cleaners package details: Carton size ( 12 pcs )546 x509 ... With overheating protection circuitSuitable for laboratory, electronic workshop, mobile phone cases, water bottles, industrial water purification systems ... silver jewelry, necklaces, earrings, glasses, nozzles, watches, mobile, denture, experiment and equipment. Mini Digital ultrasonic cleaner ...