Compatible for S7 Brush Toothbrush Head Replacement4/8PCS(4 White)

- Replacement toothbrush heads compatible with S7, available in 4 and 8-piece packs - Broad compatibility matches the specified model for smooth daily replacement - Precise fit design ensures firm attachment to the handle without loosening during use - Tool-free installation allows quick and hassle-free replacement whenever needed - Compact and lightweight structure enables easy storage and convenient carrying for home and travel