It is important to use a material that’s safe for delicate surfaces because you don’t want to end up ruining your phone screen, car paint, or windows with scratches while cleaning. Microfiber strands are incredibly thin, so they won’t scratch surfaces and are even safe for use on eyeglasses. Microfiber strands are finer than a strand of silk, which is thinner than a strand of human hair! It is important to make sure your microfiber cloth is free of debris before wiping delicate surfaces because a dirty cloth may cause scratches.