Other than my CCKO CK9919 stainless steel smart garbage bin, I have also purchased a Portable Ultrasonic Turbine mini washer at the price of slightly above RM40, during the recent 11.11 big sale promotion festival. It is mainly used to wash the mopping cloth of my Roborock S7 robot cleaner.Inside the packaging box, there are:The round washer unit with 9cm diameter, which can be put inside