I have this microfibre cloths along with a Sidolin Crystal glass cleaner used to my car windows from inside and outside to clean. One for vorwischen and one to wipe. I have to say I'm excited, it's as if no disc was there. No scratches or Sreifen. Both cloths are a good size and therefore lie comfortably in your hand. Wash That was not a problem and I think I'll still long pleasure from them.