product description: Note: Non-original, right for brush head (The bristles are impartial bristles, soft.) 1. Ultrasonic electric toothbrush can efficiently get rid of plaque and decrease gum necrosis. 2. The look of the three-D brush is customized to the gloss of the teeth. The small and gentle brush head is straightforward to the contact in your mouth. 3 DuPont basic tynex bristles 0. 4 packaging to meet scientific safety standards. 5. This type is suitable for people who smoke or drink coffee. 6. Suitable for MI JIA T100 electrical toothbrush.