Our washing machine effervescent tablets contain sodium bicarbonate and citric acid. It can easily eliminate dirt and odor, deep into the various parts of the washing machine, keep the inside of the washing machine clean and sanitary, regular use can prevent the dirt inside the washing machine for a long time accumulation, extend the service life of the washing machine. Its use is very simple: take a piece of this product into the washing machine and run it to clean. Easy to use, just put this product into the washing machine and run it, saving your energy, the ingredients are safe, and the washing machine will not be damaged while cleaning.