Multi-Purpose Deep Cleaning for Wheels & Aluminum This spray combines 3 key functions in one: effectively dissolves stubborn brake dust, removes embedded iron particles, and tackles light rust on wheel surfaces. Specially formulated for aluminum, it cleans without causing dullness, making it suitable for daily maintenance of most wheel types (alloy, steel, chrome) and aluminum parts.Intuitive Purple Color-Changing Indicator The formula features a color-changing design—spray on and it stays clear; when it comes into contact with iron filings, rust, or brake dust, it turns purple. This visual cue lets you easily see where contaminants are and when the cleaner is working, ensuring no dirty spots are missed.Gentle & Safe for Wheel Coatings pH-balanced and free of harsh abrasives, the cleaner is safe for factory-applied wheel coatings, clear coats, and polished aluminum surfaces. It removes contaminants without scratching, peeling, or discoloring, protecting your wheels while delivering a thorough clean.Easy to Use with No Strenuous Scrubbing No complicated tools needed—simply shake well, spray directly on dry wheels, let it dwell for 1-3 minutes (until purple appears), then rinse thoroughly with water. For heavy buildup, a soft brush can be used lightly. Saves time and effort compared to traditional scrubbing methods.Value Pack for Long-Lasting Use Each package10 fl oz cleaner, providing ample supply for multiple cleaning sessions. The leak-proof spray nozzle ensures precise application, avoiding waste. Ideal for car enthusiasts, daily commuters, and professional detailers alike.