Specifically designed for use with the O-Cedar EasyWring RinseClean Spin Mop & Bucket System, this RinseClean Mop Refill is made from hardworking microfiber that removes more than 99 percent of bacteria with just water. It's reusable & machine-washable for up to 3 months for sustainable cleaning. Triangular shape of mop frame & pivoting handling allow maneuverability & corner cleaning. Mop refill is safe for all hard floors, including hardwood.