Black streaks are history with It's The B.E.S.T. Instant Black Streak Remover. Wipe away black streaks with little or no rubbing. Removes mildew & stains from patio furniture. Use on RVs, mobile homes and gutters. Removes bugs, tar, brake dust and cleans white side walls. Safe for fiberglass, metal and painted surfaces when followed by rinse. ONE GALLON