Product Name: Windshield Washer Effervescent Tablets Form: Solid Effervescent Tablets 【Product Efficacy】: For cleaning car and household glass. 【Product Features】: Removes bug splatter, dust, and dirt from car glass surfaces. The cleaning leaves no residue. It also has anti-aging properties for wiper blades, maintaining their flexibility and extending their life. This product can also be used to clean the car body without causing any damage to the surface paint. 【Usage Method】: One tablet for 4 liters of water. This product is not anti-freeze. If you want to prevent frost damage, you can add alcohol after adding water. Shake the product well, and directly add it to the car windshield washer tank. For direct cleaning, shake the product well, apply it to the surface of the object to be cleaned, and wipe with a dry towel.