Use microfiber mitt dry to dust and polish, and damp with water to clean. These microfiber mitts can be used for a variety of jobs. They are handy to dust furniture, computer, desktops,and any item that needs dusting. Also they can be used damp to wash cars, trucks, RVs, airplanes, tanks, boats, etc. Will polish while cleaning. Machine or hand wash hundreds of times. Hypoallergenic, lint free, non-abrasive, and environmentally friendly.