D'Addario's micro-fibre polish cloth is a durable cleaning cloth for all instruments, which can be used with or without polish. D'Addario Microfiber Cloths capture particles deep within their fibers 2000 times finer than human hair. This makes it possible to avoid the use of aggressive cleaning agents. D'Addario Microfiber Cloths last much longer than ordinary cloths and can be cleaned several times to give you reliable and long-lasting performance.