Features:1. Multifunctional Windshield Glass Concentrated Effervescent Tablet Cleaner, the effect of 1 piece in 4L water is equivalent to 4L of regular glass cleaner. Turns regular water into powerful cleaning liquid, more conveniently and easily to use than traditional windscreen cleaner.2. Not only have cleansing effect also lubricates the glass, greatly reduce the wiper blades and glass friction force, full protection for good glass surface, extend wiper blades service life.3. Dissolve thoroughly, no residual and apply for all kinds of cars.4. The liquid with effervescent tablet will not freezes even in cold winter. Not only for car windshield, but also can be used at glass or mirror etc.5. Easy to removing bug splatter, birds droppings, tree sap and road grime from your windshield.Specification:Net content: 3g/pieceProduction date: see individual packaging and sealingState: solidWarranty period: 3 yearsIngredients: surfactants, lubricants, etc.Special Note:1. An effervescent tablet can be diluted with 3-4L of water. It is generally recommended to throw it into the wiper pot and add water (no need to pay special attention to the amount of water)2. The dissolution time of effervescent tablets is 10-15 minutes, longer in winter and shorter in summer3. The effervescent tablet has no antifreeze effect because it needs to be dissolved in water, so it is not suitable for very cold winter4. The effervescent tablet diluent is a neutral formula and can be used for car washing.5. For frequent use, it can be directly diluted with tap water, and it is recommended to use it up within 2 months; if it is not used frequently, it is recommended to use pure water to dilute it, and it can be stored for about half a year.includes:15 x effervescent tablet