1. The wavy bristles penetrate deep into the gaps between teeth to effectively clean teeth. 2. The standard brush head can more easily penetrate into difficult-to-brush areas inside the mouth, helping to clean teeth. 3. The elastic wave brush handle absorbs improper force when brushing teeth and helps protect gums. 4. Humanized anti-slip toothbrush handle design brings you a comfortable feeling. 5. Applicable people: adults
