Our car interior polish contains amino silicone oil and glacial acetic acid. It can deep clean， effectively remove internal stains. Its use method is very simple: spray the product evenly on the part of the car that needs to be polished， wait 3-5 minutes and wipe the surface until polished. And can be lightly polished， can restore the internal surface luster， improve the texture. 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.