Legerity and Portable The windshield washer is smaller and portable, which is only 16mm*2mm. One washer tablet is equivalent to 1Gallons washing liquid. Compared with traditional washing liquid, its easier to store and can save a lot of money.Thorough Dissolution It wont produce precipitation and impurities, making sure that wont block the outlet. For improving cleaning performance in winter, its mixable with anti-freezing agent.Efficient Cleaning It can effectively clean and lubricate the windshield (clean dust / sand / bird droppings / insects splashes and other dirt on the windshield), reduce the friction between wiper and windshield, and keep the windshield clean and tidy. At the same time, it can clean the stains in the kitchen/dirt on toilet floor.How to use:Open the cover of the water tank. Pour water into the tank. Put in 1 piece of Washer tablets. Wait 15-20minutes, open the wiper to clean the windshield.If the conditions permit, the product can be placed in a container to dissolve, and then it into the car water tank.Note Please note that this is a formula used in summer, which can't prevent water in your water tank from freezing. The temperature requirement is higher than -5(23). In addition, please keep it out of reach of children and pets. If it gets into your eyes, please wash with water immediately and see a doctor.