Floor Floss Refill 250m This is a new, unopened product. I've started using a different floss, so I'm offering this refill to someone who needs it. This floss is designed to "remove periodontal bacteria residing in the gums." It uses highly effective fiber for bacterial removal, sourced from Milan, Italy, and processed to suit Japanese mouths. It gently enters not only between teeth but also into the gums, effectively capturing bacteria.