- Lightweight and portable, fit for home, travelling, working use, easy to store. You can put them into your pocket so that you can use them anywhere and anytime. - Effectively to avoid the use of fine emery needle to modify the shape of the gum caused by damage, excessive wear and other issues. Clean the mouth, remove food residue, convenient and effective. - Great to remove tiny overhangs to form a healthy and beautiful adjacent shape. Helps to assist in the periodontal scaling treatment and scraping after treatment of the adjacent tooth surface polishing. - Two kinds of coarse and fine abrasive sand particles can satisfy various surface correction and polishing requirements. You can grind your teeth and clean your teeth very quickly and efficiently. - Grinding, dressing and polishing of composite resin for tooth gap fillers that are hard to reach. Many problems start in the cracks that are out of reach of the toothbrush, which makes it easy to remove food residue.