Replacement Toothbrush Head Compatible for SG-2308/XF77/XF55/SG-2309(4pcs)

- Replacement toothbrush heads compatible with SG-2308, XF77, XF55 and SG-2309 - Broad compatibility covers multiple models for flexible daily replacement needs - Precise fit design ensures secure attachment to the handle, preventing loosening during use - Tool-free installation allows quick and hassle-free replacement whenever required - Compact and lightweight structure enables easy storage and convenient carrying for home and travel