20pcs(1Pc=4L) Car Windshield Wiper Glass Washer Auto Solid Cleaner Compact Effervescent Tablets Window Repair Car Accessories Description: Item Type: Window CleaningSpecial Features: Car window cleaningMaterial Type: concentrateColor: Blue(shown in the pictures)~Maintenance wiper windshield, very important is glass water add wiper fine, regular and glass cleaning wiper, concentrated block cleanser, not only have a cleansing effect, also lubricates the glass, greatly reduce the wiper blade and glass friction force, full protection for good glass surface, extend wiper blade service life. glass dry scraping avoid!Cars rideability treaders rain wiper process, as found in a slight wiper noise, please spray on water wiper, can in to lubricate the role of, and clean glass surface murky. regular maintenance, let your wiper outperforming.Use methods:1.Open glass bottle cover, put into a grain of block concentrated.2.Fill up clear water ( recommended tap water ).3.Lid reset.1 piece add 4 liters of water.Concentrated super auto glass cleaner, than conventional glass water unique.Somatotype small, portable with milk film general size.Use convenient, rinse block plus concentrated use.Performance efficient, a grain of 4 liter equals to general water wiper.