ORAL-B EXPANDING FLOSS Mint 50m - Fiber expands to remove hard to reach plaque and food while providing an optimal fit between teeth. Great for dental operatories; signals to hygienists and patients when they have already used part of the floss string. Soft texture that’s gentle on gums. Pleasant mint flavor. Oral-B Expanding Floss helps get a deep clean where a toothbrush can't reach while the mint flavor helps keep breath fresh. It works hard to remove plaque bacteria just below the gumline.