NEW AND IMPROVED FORMULA!SONAX XTREME Wheel cleaner PLUS. Acid-free power cleaner for all light-alloy and steel rims. Also removes stubborn dirt from chrome-plated and polished rims quickly and easily. Although the product is very gentle on the surfaces, the wheel rims regain their original new appearance in no time at all. Does not damage rims or wheel bolts. With innovative activity indicator.