Our car rust remover is carefully blended with citric acid and disodium EDTA. Designed to soften rust layers without damaging metal bases. The method of use is very convenient: shake well before use， spray wine evenly in the rusty area. Let it sit for 5 minutes， then scrub with a brush. Rinse thoroughly with water and dry with wool. And can be adapted to common auto parts. Anti-spray nozzle design to prevent liquid dripping pollution body. 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.