Our bathroom cleaners contain oxalic acid, sodium bicarbonate, lauryl ether 7. It easily removes stubborn stains, mineral deposits, and scale, and the active ingredients break down and dissolve stubborn residues, keeping your toilet clean and fresh. Its use method is very simple: 1. It is recommended to wear gloves when cleaning. Spray the spray into the toilet and wait 5-10 minutes for the stain to dissolve. 2. Rinse with water. This product detergent concentration is high, only a small amount can achieve excellent cleaning effect.