PS:Please pay attention to the model: Replacement for Oclean X/ X PRO/ Z1/ F1/ One/ Air 2 /SE *Note: Non-original, relevant brush head 1. Ultrasonic electrical toothbrush can effectively remove plaque and reduce gingival necrosis. 2. The look of the 3-D brush adapts to the luster of the teeth. The small and delicate brush head is easy to the touch inside your mouth. 3. Adopt DuPont American tynex basic zero bristles, brush authorized through means of FDA and UV sterilized. 4. Vacuum packaging, medical safety standards. 5. This variety is suitable for people who smoke or drink coffee. 6. Suitable forOclean X/ X PRO/ Z1/ F1/ One/ Air 2 /SE Electric toothbrushes. 7 you have any questions on the toothbrush model, you could consult guest service. Thank you. -Vacuum Packaging-