Our toilet cleaning tablets contain sodium dodecyl benzene sulfonate, disodium EDTA and aluminum powder. It can clean the toilet, make the water clearer and cleaner, effectively clean the toilet, water tank, water pipes and other stubborn stains, so that you enjoy a clean and fresh toilet. The way to use it is simple: take a cleaning tablet, put it into the toilet tank, the cleaning agent will slowly dissolve in the tank, and you can clean it every time you press the toilet switch to flush. And you can clean the toilet.