No matter how much you brush your teeth, there are places a toothbrush never reaches, like in between the teeth. This can cause plaque and eventually cavities and/or bad breath. To prevent this, dental floss or packers or picks come in hardy. The string gets in between the teeth and gets rids of all stubborn food particles that form bad bacteria if not gotten rid of. They are user-friendly, safe, non-toxic, and food-grade PP material. It is also flexible, smooth, and long enough to reach the last molar tooth.