Cleaning the windows should be the last finishing touch when washing your car. Sparkling Blue provides the streak-free window look your car needs. This non-streak and non-haze formula cuts through that stubborn dirt and grime stuck on the windshields and windows. It contains no ammonia and is safe to use under the sun. With Sparkling Blue, windows stay cleaner longer and even works to repel against dust. It also does not contain any soaps or dyes that can damage your glass surfaces. The directions are simple to follow, simply spray and wipe.