20/30 Pcs Toothbrush Heads Compatible for FW/SG 507/508/515/551/917/959(Type 1)

- Toothbrush heads compatible with FW, SG 507, 508, 515, 551, 917 and 959, available in 20 and 30-piece packs - Ample pack size options meet various short-term and long-term replacement requirements - Precise fit design ensures stable attachment to the toothbrush handle 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