I use one of these towels for about 15 years, and am glad to have the cloth, it is perfect for all smooth surfaces (windows, mirrors, screens no matter what, plastic surfaces, especially stainless steel). For coarse dirt man must the cloth making really wet (it can also be another cloth or sponge can be used) and detergent use to remove it first time since helping a slightly damp cloth not (dirt is only spread and there are streaks). Again remove wet cloth After making detergent and then carefully purged and the wrung out cloth again neatly wipe everything and everything should be clean without streaks. As I said, I use this cloth for about 15 years had only the (price was then more than 20 DM ... for NEN cloths ???) A and it has completely convinced me, it is relatively easy to clean again, must stop now and be boiled again (with a little ARIEL active in pan 5 minutes, then rinse ordendlich) almost like new. The best thing I like about this cloth that, one stainless steel without expensive cleaning and polishing preparations, (coarse dirt removed previously), easily strip and streaking gets (habs tried before by the market leader with NEM stainless steel cleaner, habs after an hour ago abandoned works just do not !!!!) have the microfibre cloth taken to again to wipe everything and after the refrigerator was spotless !!! My conclusion the cloth is just great !!!