Electric toothbrush head replacements. Its small size allows easy access to all areas of the mouth and its intermediate hardness filaments favor the elimination of bacterial plaque. Indicated for healthy teeth and gums. It is a universal compatible model. The color of the indicator bristles will fade when the head needs to be replaced. Dentists recommend changing the head every 3 months. Mode of Use Divide the mouth into 4 quadrants. Position the brush above and to the sides of each tooth and let the brush do its job, without pressing. You must follow this procedure and change quadrants every 30 seconds. Recommended brushing minimum 2 minutes. Warning: Not indicated for children under 4 years of age. In children under 8 years of age, use under adult supervision.