20 Pcs Toothbrush HeadCompatible for Replacement FW-507/508/515/551/917/959/2011/D1/D3/D7(20 PCS Black)

- 20 Pcs toothbrush heads offer abundant backup, easily satisfying family and individual long-term replacement needs. - Precisely compatible with FW-507, 508, 515, 551, 917, 959, 2011, D1, D3 and D7 toothbrushes, ensuring a tight fit. - Ergonomic design aligns with common brushing habits, delivering a smooth and comfortable using experience. - Thoughtful structure helps reach hard-to-access areas like tooth gaps, supporting basic daily cleaning effectively. - Tool-free installation allows quick and hassle-free replacement, enhancing overall convenience.