8/12pcsReplacement Toothbrush Brush Heads Compatible for 4100 6500 6100(12 Pcs)

- Replacement toothbrush heads compatible with 4100, 6500 and 6100, available in 8 and 12-piece packs - Multiple pack options meet different daily and long-term replacement requirements - Precise fit ensures secure attachment to the handle, preventing loosening during daily use - Tool-free installation allows quick and easy replacement whenever needed - Compact and lightweight design enables easy storage and convenient carrying for home and travel