Features: 1 piece add 4 liters of water Concentrated super auto glass cleaner , than conventional glass water unique:the following Cleaning strong capacity. 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. Use methods. Open glass bottle cover , put into a grain of block concentrated. Fill up clear water ( recommended tap water ). Lid reset. Maintenance wiper windshield,very important is glass water add wiper fine , regular and glass cleaning wiper,concentrated block cleanser,not only have cleansing effect , also lubricates the glass,greatly reduce the wiper blade and glass friction force,full for protection for good glass surface,extend wiper blade service life . glass dry scraping avoid for Cars rideability treaders rain wiper process,as found in a slight wiper noise, pls spray on water wiper,can in to lubricate the role of,and clean glass surface murky.regular maintenance,let your wiper outperforming. Specification: Material: Concentrate One piece size: Diameter: 16mm(0.63in) Color: As the picture shown Quantity: 10pcs Note: Size for manual measurement, there may be a 0 to 2 for cm error, belongs to the normal phenomenon. And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: (Without retail package) 10Pcs x Car Windscreen Cleaning Concentrated Rinse Block