Replacement Electric Toothbrush Head Bristle Brush Refill Compatible with Fairywill FW-D1/FW-D3/FW-D7 Toothbrush Refills(20 PCS BK)

- ??- Replacement Electric Toothbrush Head, Bristle Brush Refill, Compatible with FW-D1/FW-D3/FW-D7, Toothbrush Refills - ??- 3D head design, easy to clean the hard-to-reach interdental area - ??- Bristle will not scratch your gums or damage the surface - ??- Easy to use. Right rotation to unlock, convenient to replace without extra auxiliary means. - ??- Recommended to replace a brush head for 2 - 3 months by the dentists, 2pcs in one package is convenient for replacing