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. long versions of the 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.