Our car tire retreads contain carnauba wax， silicone oil， brightener. It can restore the original new look of the tire， prevent ultraviolet erosion， avoid rubber aging and fading， and effectively extend the life of the tire. The way to use it is very simple: clean the tire， dry the tire， apply the product evenly with a sponge on the tire， and when it dries， you can add more layers as needed. And the wheels can be refurbished. Please kindly note:🚚 Fast ShippingThis product ships from our U.S. warehouse via UPS (FedEx as backup). We aim to deliver your order quickly and reliably. 📦 No Return AcceptedThis is a single-use consumable product. Once opened and applied, it cannot be returned, reused, or restocked. Therefore, we do not accept returns under any circumstances. 🔍 Order CarefullyPlease read the product description thoroughly before purchase. Make sure it fits your intended use. We recommend placing orders cautiously. 💰 Promotional OfferThis product is currently on promotion at near cost price, with special deals for bulk purchases. Please check the promotion details on the listing page to save more.