Flash Spray.Wipe.Done. Cleaning Spray will change the way you clean your surfaces, turning your to-do into a ta-daa! Just spray it everywhere, wipe it over and you are done! It’s that simple! It instantly removes watermarks from your shower with no extra steps - no scrubbing, no streaks. Flash Bathroom Cleaner leaves nothing behind but a sparkling clean shower! A spray a day keeps the watermarks away!