Car Windshield Cleaner Effervescent Tablets Solid Washer Agent Universal Automobile Glass Water Dust Soot Remover Functions Clean and purify, reduce friction between wipers and glass, and protect them.Instructions for use: This product is suitable for environments above zero degrees Celsius. Open the car hood, find the wiper, add a wiper (if the glass is too dirty, it is recommended to add 2), and wait for 5 minutes before using it normally. A regular piece of water can be exchanged with 4L of water. According to the normal volume of the storage tank, it is a piece of water that can replace traditional glass water and is superior to traditional glass water! Alert 1,This product should be stored in a cool dry place to avoid contact with children. Do not swallow!2,This product can not be used for antifreeze glass water! Only the cleaning function does not have antifreeze function. _x000D_