4/8/12/16PCS Compatible for T501 Replacement Toothbrush Heads Electric(12pcs)

- Electric replacement toothbrush heads compatible with T501, available in 4, 8, 12 and 16-piece packs - Multiple pack size options satisfy diverse short-term and long-term replacement demands - 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 portable structure enables easy storage and convenient carrying for home and travel