Compatible for T501 Electric Toothbrush Heads Bristles Replacement Brush4/8/16pcs(16PCS)

- Compatible with T501 electric toothbrush as replacement brush heads with bristles, available in 4/8/16-piece options. - Matches device head interface structure for direct installation without additional tools. - Supports vibration cleaning actions of electric toothbrushes to assist with surface cleaning tasks. - Serves as a replacement part to sustain regular use for the specified T501 electric toothbrush model. - Multiple quantity choices (4/8/16pcs) meet periodic head replacement needs for compatible toothbrushes.