product manual: In addition to dust, automotive glass, in addition to dust, includes insects, sludge, asphalt, saline, tree sticks, fingerprints, soot, plastic volatiles and so on. This product is a high-performance cleaning agent. It is directly mixed with clean water and added to the wiper kettle. It is very convenient to use and can easily remove the glass oil film and insect traces. This product has a lubricating effect on the wiper rubber skin and has anti-aging function to maintain flexibility and prolong its service life. This product is suitable for daily cleaning and care of all kinds of imported and domestic high-class cars. Small size, convenient to carry. Performance efficient, a grain of 4 liter equals to general water wiper. Main Ingredients: Sodium Bicarbonate Citric Acid Surfactant Decontamination Active Enzymes Polymer Lubricants Function: Clean and decontaminate, reduce the friction between the wiper and the glass, and protect it. Instructions for use: This product is suitable for above zero degrees Celsius. Open the hood of the car, find the wiper tank, fill the tank with water, add a piece of wiper (if the glass is too dirty, it is recommended to add 2 pieces), wait for 5 minutes and then use it normally. A piece of conventional water can be exchanged with 4L of water. According to the normal volume of the liquid storage tank, it is a piece of water, which can replace and be superior to traditional glass water! Specifications: Car Cleaner Compact Glass Washer Detergent Effervescent Tablets Package Included: 10* concentrated wiper Notes: This product should be stored in a cool dry place to avoid contact with children. Do not swallow! This product can not be used for antifreeze glass water! Only the cleaning function does not have antifreeze function Quality is the first with the best quality service. Customers are our friends. Please leaving a message before you give the bad feedback, if the products have some problems. Thanks for your understandings