12pcs Replacement Toothbrush HeadsCompatible for Soft Brush Head 4100 6500 6100 7500(12PCS Bule)

- 12 pieces offer sufficient backup for daily replacement, suiting individuals or small families. - Soft brush head design provides gentle contact, matching comfortable daily brushing habits. - Precisely compatible with 4100, 6500, 6100 and 7500 toothbrushes, ensuring a tight connection. - Practical structure reaches hard-to-clean areas, adapting to regular daily use demands. - Tool-free installation: snug fit enables quick, hassle-free replacement without complex steps.