PS:Please hear in at the model: Replacement for OCLEAN*Note: Non-original, applicable brush head 1. Ultrasonic electric toothbrush can effectively get rid of plaque and reduce gingival necrosis. 2. The appearance of the three-D brush adapts to the luster of the teeth. The small and mild brush head is easy to the touch inside your mouth. 3. Adopt DuPont American tynex traditional 0 bristles, brush authorised through means of FDA and UV sterilized. 4. Vacuum packaging, scientific safety standards. 5. This variety is appropriate for folk who smoke or drink coffee. 6. Replacement for Oclean X/ X PRO/ Z1/ F1 Electric toothbrushes. 7 you've any questions about the toothbrush model, you can seek the advice of guest service. Thank you packaging-