Microfiber Wet / Dry Mop Pad Refills are thin, durable & effective. Woven microfiber picks up more dirt than nonwoven disposable pads. They are safe to use on all types of hard floors. Disposable design minimizes cross-contamination & is perfect for hospital wards, restrooms, gym / fitness studios or locker rooms. Reuse in safe zones such as corporate offices, living spaces, food-prep areas & dining spaces. They fit standard, 18" commercial mop frames & are compatible with Swiffer Sweeper, Swiffer WetJet & most home mops (none included). Innovative dispensing box dispenses one pad while priming the next pad for use.