*Note: Non-original, applicable brush head 1. Ultrasonic electric toothbrush can effectively remove plaque and reduce gingival necrosis. 2. The appearance of the 3D brush adapts to the luster of the teeth. The small and delicate brush head is easy to touch inside your mouth. 3. Adopt DuPont American tynex classic 0.152mm bristles, brush approved by FDA and UV sterilized. 4. Vacuum packaging, medical safety standards. 5. This type is suitable for people who smoke or drink coffee. 6. Suitable forOclean X/ X PRO/ Z1/ F1/ One/ Air 2 /SE Electric toothbrushes. 7.if you have any questions about the toothbrush model, you can consult customer service. Thank you.