Our tire repair kits contain plasticizers and hardeners. It can prevent tire oxidation, fine lines, cracks, bumps and other problems, so that the tire long-term healthy state, reduce the frequency of maintenance. Its use method is very simple: clean the tire surface, evenly apply the product to the parts of the tire that need to be repaired, and smooth the surface with a scraper, and let it dry. And it can deeply nourish the tire rubber, extend the service life of the tire and save you costs.