Watsons Charcoal Round Thread Dental Floss Picks 50s x 3Boxes Product Details Effective cleaning helps prevent surface stains between teeth. Flexible curved tail end helps safely remove trapped food debris. Place of Origin China Directions Grip the handle and gently slide the floss between each tooth using back and forth motions just to the gum line. Slide the floss up and down along the tooth surface to remove food debris and plaque. Ingredients Thread Polyester, Carbon Fiber, Handle ABS (Food Grade)