A negative ion toothbrush that can be used only with water without toothpastes and makes your teeth shiny. ※This is not an electric toothbrush.
Just wet the bristles with a little bit of water and brushes with your palm or finger touched on the terminal (silver-colored part), and negative ion will flow into your mouth from the batteries built inside.
Extra-fine, regular type toothbrush that is most suitable for brushing gaps between teeth or periodontal pockets.