For sparkling clear windows without washing - the cleaner is in the cloth!

We've just discovered the quickest, most effective way to clean windows. No more smudges - the cleaner is already in the cloth. As you wipe, the cloth spreads an invisible protective shield on all glass surfaces, preventing finger marks, water staining and streaking. It even inhibits dust and dirt build up. Long life 100% cotton cloths that can be used over and over again for sparkling results! Washable.