Our automotive glass nano repair liquid contains UV glue. It can maintain the appearance and safety of the vehicle and also avoid the cost of replacing a potentially expensive full windshield in the future. Its usage method is very simple: First， clean the area around the damaged car glass. Then， use a blade to cut the cured film according to the length of the damage. Next， apply repair liquid along the damaged area of the glass crack and quickly cover it with the cured film. Press out the air bubbles between the glass and the cured film. Move the car to a place exposed to direct sunlight for 10 to 30 minutes or use a UV lamp instead of curing until it is cured. Then， remove the cured film. It can save the inconvenience of long-term maintenance or service appointments. 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.