Features: 1. Efficient Cleaning Power: After being dissolved in water, the effervescent tablet removes mud, oil, birds, insect carcasses, and other stubborn dirt. It has high decontamination efficiency and can be done in a few seconds. 2. Refurbished Wiper Strip: The effervescent tablet contains a tear agent, rubber protective agent, antioxidant, and other ingredients, which can significantly improve the flexibility of the strip, delay aging and reduce the frequency of replacement. 3. Easy To Use: Different types of car wiper cans have different sizes, usually around 3-4L. You can directly throw the effervescent tablet into the wiper can then fill it with water, it can be used after about 10 minutes, and in winter, you need to wait another 5-6 minutes. 4. Thorough Dissolution: It wont produce precipitation and impurities, making sure that wont block the outlet. For improving cleaning performances in winter, its mixable with an anti-freezing agent. 5. 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 0. 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. Specification: Material: Plastic Color: Multicolor Product Size: Diameter: 1.8cm, Thickness: 0.5cm Product Weight: 33g Package Included: 10 x Car Wiper Effervescent Tablets