The Rubbermaid Commercial Products Microfiber Floor Mop is designed for use with the Rubbermaid FGQ55900 standard Quick-Connect frame (sold separately). This damp room mop is made from extremely thin synthetic fibers that are nonabrasive and lint-free and remove more dust dirt and microbes than conventional cleaning products. The density of the material makes them more absorbent than conventional cotton looped-end mops. These Rubbermaid mop heads will withstand hundreds of launderings for long product usage life.