The Large Microfiber Wet Mop Head, sold one per case, is a great alternative to traditional methods of mopping to make it a more efficient task. Made from split microfiber, this mop head is able to attract more dirt than other yarn-type mops. It's also able to clean floors without streaking and lets surfaces dry faster. The strips of microfiber material are banded together with mesh at the top and threaded together at the bottom. You can wash and reuse this mop head up to 400 times as another convenient feature.