Our automatic toilet cleaner contains cocamidopropyl betaine, disodium EDTA. It can quickly remove the residual stains on the toilet, keep the toilet white, in addition to cleaning the toilet, can also remove the smell in the toilet, keep the toilet clean and fresh. The way to use it is simple: open the package, tear the seal and top plug, scrape off the little raised spots on the bottle with a knife, then put the cleaner into the toilet tank, and every time you turn on the flush switch, the toilet will clean itself. And you can clean the toilet.