product description: * Note: Non-original, well matched for brush head (The bristles are impartial bristles, which are more durable and feature stronger cleansing power.) 1. Ultrasonic electric toothbrush can effectively eradicate plaque and reduce gum necrosis. 2. The look of the 3-D brush is tailored to the gloss of the teeth. The small and mild brush head is simple to the touch on your mouth. three DuPont regular tynex bristles 0, FDA authorised bristles, and UV disinfection. four packaging to satisfy clinical safety standards. 5. This form is appropriate for people who smoke or drink coffee. 6. Suitable for MIJIA T100 electric toothbrush.