PS:Suitable for XIAOMI T302 Features: 1. Soft DuPont bristles, appropriate for touchy tooth to apply 2. Ultrasonic electrical toothbrush can efficiently eliminate plaque and decrease gingival necrosis. 3. Adopt DuPont American tynex ordinary 0 bristles bristles,gently in your teeth. four bristle tip diameter, deep clean the space between tooth 5 accepted by technique of FDA and UV sterilized. 6 sealed packing, way more secure to use. 7 update the toothbrush heads every single three months eight you've got any questions on the toothbrush model, you will need to seek the advice of visitor service. Thank you. Indenpently sealed packing