10/20PCS Toothbrushes HeadCompatible for Usmile Y1S/Y4/U1/U2/U3/P1/P4 Soft Sonic Electric Toothbrush Clean(White)

- 10/20-Pack Options: Available in 10 or 20 pieces, meeting different long-term oral care replacement needs.? - Multi-Model Compatibility: Fits Y1S/Y4/U1/U2/U3/P1/P4 electric toothbrushes, ensuring proper and use.? - Soft Bristle Design: Features soft bristles, providing gentle contact with teeth during cleaning.? - Sonic Tech Fit: Works with sonic electric toothbrush systems, matching their daily cleaning functionality.? - Easy Installation: Simple to attach and remove, enabling hassle-free head changes when required.