Compatible for T1 Y1 Electric Toothbrush Replacement Heads4/16pcs(16pcs W)

- Replacement heads compatible with T1 and Y1 electric toothbrushes, available in 4 and 16-piece packs - Dual pack size options meet both short-term use and long-term replacement demands - Precise fit design ensures stable attachment to the handle during daily brushing - 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