PS:Please pay attention in on the model: XIAOMI T300/T500 *Note: Non-original, relevant brush head 1. Ultrasonic electric toothbrush can effectively remove plaque and reduce gingival necrosis. 2. The look of the three-D brush adapts to the luster of the teeth. The small and gentle brush head is easy to the touch within your mouth. 3. Adopt DuPont American tynex classic zero bristles, brush authorised by FDA and UV sterilized. 4. Vacuum packaging, scientific safety standards. 5. This diversity is appropriate for folk who smoke or drink coffee. 6. Suitable for XIAOMI T300/T500 Electric toothbrushes. 7 you've got any questions about the toothbrush model, you may consult visitor service. Thank you. -Vacuum packaging-