Amazing effervescent cleaning system. Just dilute one tablet in 4 liters of water. Place the solution in a spray bottle and start cleaning. 1 package includes 4 tablets. Our multi-functional effervescent tablet is also designed to replace your mirror cleaner, kitchen cleaner, window cleaner, tile cleaner, etc. It is a powerful integrated cleaning agent, not only suitable for cleaning car's glass, but also has strong decontamination effect on kitchen stains, toilet floor stains, etc. Safe for all metal, windshield and window glass, rubber, plastic and painted surfaces. If used for car washing, please add car detergent for better results.