4-20 Pack 4/8/12/20 Brush Heads Replacement Compatible with Electric Toothbrush Tooth Head for HX4100/7500/9500(Black-20Pcs)

- Compatible with HX4100, HX7500, HX9500 sonic electric toothbrushes. - Soft, rounded bristles deeply clean plaque and protect gums. - Standard click design, stable without shaking while vibrating. - MULTIPLE BULK OPTIONS - 4, 8, 12, 20 packs for long term family use. - Replace every 3 months for a consistent cleaning effect.