The CSO cleaning set optics allows a thorough and gentle cleaning of all optical lenses. The set consists of a lens cleaner, a cleaning brush, a dust blower and two microfiber cloths in different sizes - all practically packed in a high-quality bag. The set is particularly durable, so you can easily wash the microfiber cloths and the bag in the washing machine (40 degree C/100 degree F). Refill the glass bottle with the lens cleaner (fluid) at selected retailers.