Our concentrated wiper cleaning effervescent tablets contain disodium EDTA, sodium bicarbonate and lauryl ether 7. It can effectively clean and efficiently hydrophobic car glass surface, remove stubborn oil film, keep your car clean, and form a waterproof film for a long time, ensure clear vision, improve driving safety. Its use is simple: dissolve the cleaning tablet in 4 liters of water, pour it into the car tank, and start the blender to clean the windshield. And quickly dissolve, easy to maintain, easy to master.