I have to say first off being a Dental Assistant for 6+ years this item is very nice to floss with. But nothing gets the job done like the full affect of floss. The ada Statistics show that only 12% of the population flosses. You just have to be careful using these not to cut your gums. I suggest looking in the mirror while doing this. These are basically a thin matrix band but a cleaver idea on how to use it for flossing. Very hand for on the go purposes. Theses are good for up to 30 days. Check them out online at http://www.brytonpick.comI received one or more of the products mentioned above for free using Tomoson.com. Regardless, I only recommend products or services I use personally and believe will be good for my readers.