Individually packaged: Each compressed car concentrated wiper fluid is individually packaged and each tablet is the size of a coin for easy storage. 1 piece can be mixed with 4 liters of water, which saves considerably than normal car wiper fluid, (most car wiper fluid tank has a capacity of 4 liters, just put one piece) This concentrated car window washer fluid can effectively remove bird droppings, resin, road mud stains, improve glass transparency, protect clear vision and improve driving safety. It dissolves quickly: it can be quickly dissolved with water when put into water, leaving no residue and will not block the car wiper hose. Concentrated car wiper fluid can also be used to clean home glass, furniture glass, coffee tables, windows, mirrors, etc.Tip: In winter, you can add some alcohol in moderation to prevent windscreen wiper fluid from freezing.