I recently purchased this from iHerb. One is opened and used about 1m. The other is unused. Activated Charcoal Floss Total length 30 yards / 27m PTFE (Polytetrafluoroethylene), PFAS (per- and polyfluoroalkyl substances) free Contains activated charcoal Expands between teeth for thorough cleaning Removes more plaque Ideal for teeth with braces and wide gaps Vegan - Natural plant wax coating No animal testing Gluten-free, non-GMO This floss expands and is gentle on gums and fingers. The increased surface area enhances cleaning power.