Keep your heavy-duty Wonder® Mop cleaning strong with this handy refill. A direct replacement for the original heavy-duty Wonder® Mop head, it features a 45% bigger mop head, with 10 in L versions of our exclusive antibacterial GRIPSTRIPS™ material and is designed to lift even more dirt. It removes over 99% of staphylococcus aureus and E. Coli on ceramic tile and wood floors when used with water, while also being machine washable up to 50 times. Simply remove the head, wash and reinstall it to keep cleaning while keeping disposable cleaning pads out of landfills.