The 15-390 Xtra Seal Premium 4" Tire Repair Inserts are a high-quality solution for repairing tires. This 30-piece set of tire repair plugs by Xtra Seal is designed to provide a secure and durable seal to patch up punctures and ensure a safe and reliable drive. With the trusted brand and specific manufacturer part number, these inserts offer a convenient and effective way to maintain your vehicle's tires in optimal condition.